(Beyond Pesticides, July 16, 2020) Long-term exposure to sublethal (low-level) concentrations of the neonicotinoid in soil negatively affects the health and behavioral development of black garden ants (Lasius niger) colonies, according to a study published in Communications Biology by scientists at the University of Bern, Switzerland. Ants are one of the most biologically significant insects in the soil ecosystem, acting as ecosystem engineers. Their burrowing behavior aerates the soil, allowing oxygen and water to penetrate down to plant roots. Additionally, ants increase soil nutrient levels by importing and accumulating organic material like food and feces, thus enhancing nutrient cycling. Like many other insects, ants are unfortunate victims of the global insect apocalypse or population decline, and much research attributes the recent decline to several, including pesticide exposure. Broad-spectrum pesticides, like neonicotinoids, indiscriminately kill pests and nontarget organisms alike, as their ubiquitous use contaminates soils, even in untreated areas. This study highlights the necessity of rethinking chemical pest management, developing sustainable agricultural practices that reduce the use of agrochemicals, like pesticides, to prevent permanent environmental ecosystem damage. Researchers in the study note, “To prevent irreparable damages to functioning ecosystems, [we] suggest to either fully incorporate long-term effects in risk assessment schemes, or to make a shift […]

(Beyond Pesticides, July 15, 2020) Evian bottled water is supposed to be so pure that scientists will calibrate their measuring devices with it. But new data from Swiss researchers finds it to be contaminated with a toxic fungicide.  “The fact that even the Evian springs in the French Alps, which are hardly affected by humans, contain pesticide residues is alarming and shows the far too careless handling of these substances,” Roman Wiget, president of the international drinking water association AWBR told the German-language Swiss weekly. Researchers looked specifically at the levels of the fungicide chlorothalonil in Swiss waterways, as Switzerland and the European Union took steps last year to ban use of the pesticide. In banning the chemical, regulators at the European Food Safety Authority (EFSA) noted, “Great concerns are raised in relation to contamination of groundwater by metabolites of the substance.” EFSA designated the fungicide as a 1B carcinogen, meaning that it “may cause cancer.” Chlorothalonil has been in production and use since the 1960s, but it is only now that regulators are starting to take a closer look at its health and environmental impacts. In addition to cancer, chlorothalonil is neurotoxic, can harm the human reproductive system, damage kidneys, […]

(Beyond Pesticides, July 6, 2020) EPA’s proposed interim decision (PID) on the weed killer clopyralid is inadequate to protect human health, property, nontarget plants, and pollinators from damage. Clopyralid poses unreasonable adverse effects that cannot be remedied by EPA’s proposed fixes. It should be banned. Sign the petition by noon Monday, July 6! Tell EPA to ban the persistent toxic herbicide clopyralid. Clopyralid is a toxic persistent herbicide used to control broadleaf weeds on lawns and turf, range, pastures, right-of ways, and on several crops. Approximately 1.6 million pounds of clopyralid is used on 20 million acres per year in the U.S. on agricultural land, but it is also commonly used to kill dandelions, clover, and thistles. Lawn care operators applied over a million pounds of clopyralid in 2013. Clopyralid is notorious for causing damage to nontarget plants. The registration was modified in 2002 to delete residential turf uses from the clopyralid product label. Additionally, under the amended label professional applicators are required to notify property managers not to compost clippings from treated grass. EPA proposes to expand the prohibition to include school turf, but clopyralid products will continue to be used on golf courses and certain other forms of […]

(Beyond Pesticides, July 1, 2020) As the U.S. is subject to searing criticism for inadequately regulated hazardous pesticides domestically, administration officials are standing in the way as other countries’ work toward modest reforms. According to a report published in Reuters, the U.S. is standing alongside the corrupt Bolsonaro administration in Brazil to oppose Thailand’s efforts to protect its citizens from highly toxic pesticides used in food production. Both countries launched separate complaints to the World Trade Organization after Thailand announced it would ban imports of the brain-damaging insecticide chlorpyrifos and weedkiller paraquat, which has been strongly linked to Parkinson’s disease. On June 1, Thailand added paraquat and chlorpyrifos to its list of most hazardous substances. This listing initiated a follow-on regulation that banned the import of these substances on food, set to take effect in mid-July. Thailand has been feeling the brunt of U.S. diplomatic pressure since it first proposed restrictions on toxic chemicals late last year. By December, the U.S. was able to get Bangkok to remove glyphosate from its proposal, and delay the listing of paraquat and chlorpyrifos until June. But as the current situation shows, the U.S. had no plans to stop pressuring the Bangkok government after […]

(Beyond Pesticides, June 23, 2020) Next-generation systemic insecticides, billed by the agrichemical industry as “safer for bees” than neonicotinoids, have been found to stress and kill honey bees. As reported, a study by researchers at Oregon State University in the journal PLOS One, sulfoxaflor and flupyradifurone (in the products Transform and Sivanto, respectively) were found to increase apoptosis (cell death) and increase oxidative stress in exposed honey bees. The study indicates that, “With the recent Environmental Protection Agency (EPA) approval for use of both flupyradifurone and sulfoxaflor, and with the growing concern regarding pollinator health, it is important to better understand any potential negative impacts (especially sub-lethal) of these pesticides on bees.” However, this statement begs the question ‘why these two new bee-toxic pesticide were approved by EPA in the first place.’ This process is familiar and frustrating to those who continue to fight against the decline of pollinators: the chemical industry introduces and EPA approves new toxic pesticides marketed as “safer” to the specific problem caused by its older products, only to find out through independent and academic research that the problem is not solved in the least. Researchers conducted two exposure assessments: one six-hour long study, and another […]

(Beyond Pesticides, June 22, 2020) In the wake of the national groundswell for equity and justice in the face of rampant inequality and police brutality against people of color, we acknowledge, during Pollinator Week, holistic actions are needed to solve systemic societal problems that cause racial disparities. Those fighting for environmental justice understand that the harms inflicted by toxic chemical production and use cause disproportionate adverse effects on people of color—from fenceline communities near chemical production plants, to the hazardous and inhumane working conditions in agricultural fields, to the elevated risk factors for black and brown people from toxic pesticide exposure patterns.  Pollinator Week reminds us that we must nurture the ecosystem, which we depend on for life, with a fierce commitment to its inhabitants and a focus on those at highest risk. Therefore, this week is a time to renew our commitment to environmental justice and seek the adoption of policies and practices in our communities, and across the nation and the world, that recognize the urgency to address the disproportionate harm inflicted by toxic pesticide use.  TAKE ACTION! Here are three things you can do today. Protect Low-Income and People of Color Communities—As The Black Institute in New […]

(Beyond Pesticides, June 19, 2020) As it navigates an exit from the European Union (EU) and its trade agreements, the UK is considering the establishment of its own Free Trade Agreements, including commodities treated with pesticides, with various partner countries. Toxic Trade, a new report from Pesticide Action Network UK (PAN UK) and others, reveals how such agreements between the UK and other countries — and the U.S., in particular — threaten to weaken existing protections from pesticides in the UK, which are stronger than those in most other countries. The report points to potential harms to UK residents, environment, and wildlife; it further suggests that the likelihood of the U.S. successfully imposing a weakening of UK protections is high. In November 2019, Beyond Pesticides covered the warnings from PAN UK and the Soil Association that the UK’s “Brexit” might result in greater pesticide use and/or exposure. The UK, and other European countries, have taken a more-precautionary approach to the permitting of pesticide use than does the U.S., Australia, or India. The UK bans a long list of pesticides that threaten human health, pollinators, ecosystems, and natural resources; many of these same compounds continue to be used in these three other […]

(Beyond Pesticides, June 18, 2020) Residential exposure to household pesticide products increases the risk of developing symptoms associated with depression, according to a study published in Environmental Research by researchers at Medical College of Georgia—Augusta University, School of Medicine—Jinan University, and Guangzhou Center for Disease Control and Prevention (CDC), China. Research on pesticide-induced diseases commonly investigates pesticide exposure concerning the development of various physical illnesses, and previous studies show there are occupational risks of developing depression, especially in agriculture where pesticide use is rampant. However, there is a lack of information connecting pesticide exposure to the subsequent psychological (psychiatric) effects on the general population. Additionally, household pesticide exposure varies from occupational exposure via exposure frequency, duration, intensity, and type. This research highlights the significance of researching potential mental health effects resulting from pesticide exposure, especially as society tends to rank mental health risks second to physical health. The study’s scientists note, “Our results highlight the importance of the cautious use of household pesticides because the chronic effects of poisoning may contribute to an elevated risk of depression.”  According to the World Health Organization (WHO), depression affects 322 million people globally, with the number of diagnosed patients increasing by 18.4% from 2005 to 2015. Although the etiology of depression—and […]

(Beyond Pesticides, June 17, 2020) The June 3 decision in a high-profile “dicamba case” — against the U.S. Environmental Protection Agency (EPA) and for the plaintiffs, a coalition of conservation groups — was huge news in environmental advocacy, agriculture, and agrochemical circles. The federal Ninth Circuit Court of Appeals vacated EPA’s 2018 conditional registration of three dicamba weed killer products for use on an estimated 60 million acres of DT (dicamba-tolerant through genetic modification/engineering) soybeans and cotton. There is, however, a related issue that accompanies this and many other pesticide cases. When EPA decides to cancel or otherwise proscribe use of a pesticide (usually as a result of its demonstrated toxicity and/or damage during litigation), the agency will often allow pesticide manufacturers to continue to sell off “existing stocks” of a pesticide, or growers and applicators to continue to use whatever stock they have or can procure. Beyond Pesticides has opposed, covered, and litigated against this practice. To greenlight predictable harm is a violation of any recognized moral code, never mind of the agency’s mission — “to protect human health and the environment.” According to Beyond Pesticides, EPA should never permit continued use of a dangerous pesticide once that compound’s […]

(Beyond Pesticides, June 12, 2020) New research finds that western monarch milkweed habitat contains a “ubiquity of pesticides” that are likely contributing to the decline of the iconic species. The research, published in Frontiers in Ecology and Evolution, provides a grim snapshot of a world awash in pesticides, and raises new questions about the U.S. regulatory process that continues to allow these toxic chemicals on to the market without adequate review and oversight. “We expected to find some pesticides in these plants, but we were rather surprised by the depth and extent of the contamination,” said Matt Forister, PhD, a butterfly expert, biology professor at the University of Nevada, Reno and co-author of the paper in a press release. “From roadsides, from yards, from wildlife refuges, even from plants bought at stores—doesn’t matter from where—it’s all loaded with chemicals. We have previously suggested that pesticides are involved in the decline of low elevation butterflies in California, but the ubiquity and diversity of pesticides we found in these milkweeds was a surprise,” Dr. Forister said. The researchers collected over 200 milkweed samples from nearly 20 different sites across the Central Valley of California, as well as from retailers that sell milkweed […]

(Beyond Pesticides, June 11, 2020) Researchers at North Carolina State University (NC State) and Duke University found that dogs can potentially operate as a sentinel, or indicator, species for environmental contaminate exposure – and subsequent diseases – in humans using silicone monitoring devices (i.e., wristbands, collars, etc.), according to research published in Environmental Science & Technology. Although scientists commonly use silicone devices to gauge organic contaminant exposure levels in epidemiological studies, the identification of chronic human diseases from pollutants remains challenging. Anthropoid (human) diseases can take many years to develop, even after initial contaminant exposure. However, dogs can develop comparable anthropomorphic diseases from susceptibility to the same environmental contaminants, but at a much quicker pace. This research highlights the significance of researching disease identification methods, mutual amid multiple species, to mitigate challenges surrounding long disease latency periods. Matthew Breen, Ph.D., professor of comparative oncology genetics at NC State, asserts, “If we develop ways to correlate dog disease with their exposures over time, it may allow human-health professionals to mitigate these exposures for both species. This study reinforces the concept of One Health, demonstrating that in addition to being our closest animal companions, our dogs are truly a sentinel species for health.” As […]

(Beyond Pesticides, June 9, 2020) EPA has received applications from the states of Maryland, Pennsylvania, and Virginia for the “emergency” use of the bee-toxic neonicotinoid insecticide dinotefuran to control brown marmorated stinkbugs in pome and stone fruits. These three states (and others) have received emergency exemptions for this use for the nine previous years and it must not be allowed for a tenth year. Rather than skirt the regulatory process of review, this use pattern must be subject to EPA registration review in combination with all other neonicotinoid uses. Sign the Petition to EPA and Send a Letter to Your Congressional Representative and Senators: EPA Must Deny Routine “Emergency” Exemptions As a neocotinoid insecticide, dinotefuran presents an alarming hazard to bees and other pollinators. Like other neonicotinoids, it is systemic and can indiscriminately poison any insects feeding on nectar, pollen, or exudates. It is also highly toxic to aquatic invertebrates and soil organisms, as well as being highly persistent. In addition to the serious ecological impacts, dinotefuran is toxic to the immune system. This is, of course, an effect that should avoided during the coronavirus pandemic—when the immune system is under attack. Section 18 of the federal pesticide law (FIFRA—Federal Insecticide, Fungicide, […]

(Beyond Pesticides, June 8, 2020) Brazil is home to more than 300 native bee species — many of them stingless — that help pollinate the nation’s valuable agricultural crops and provide other important environmental services. Yet, chemical-intensive agriculture’s intensive pesticide use and devotion to monocropping are a serious threat to these bees, Mongabay reports. Beyond Pesticides maintains that elimination of such pesticides is key to protecting critical pollinators, ensuring a nontoxic food supply, supporting ecosystems and biodiversity, and ensuring safe working conditions for agricultural workers and safety for rural residents. Organic, regenerative agricultural practices, which often avoid monocropping, achieve all of these important goals. Advocates maintain that a transition to such practices is imperative in ensuring a far less toxic future for humans, other residents of Planet Earth, and Nature itself. The Brazilian Platform for Biodiversity and Ecosystem Services estimates the financial value of pollinators in Brazil, which include bees, moths, bats, butterflies, wasps, beetles, and other organisms, at roughly $8 billion annually. Most honey production in Brazil (and globally) comes from one species, Apis mellifera — a hybrid of European and African species that arrived in the Americas in the early 17th century. A. mellifera is still the dominant […]

(Beyond Pesticides, June 5, 2020) Amidst the COVID-19 pandemic, Massachusetts is wrestling with solutions for mosquito-borne illnesses such as Eastern Equine Encephalitis (EEE) and West Nile Virus (WNV). A coalition consisting of national, state and local nonprofits, with the assistance of 75 legislators, won major amendments to emergency legislation sponsored by Governor Charles Baker, but the coalition seeks further refinements. As originally introduced, Gov. Baker’s bill (H.4650 – see original legislation and amended version) would have given state agencies overly broad authority to eradicate mosquitoes through unlimited pesticide applications, without local input or notification to communities and residents prior to aerial spraying.  It would have suspended all environmental safeguards whenever state officials determine that an elevated risk of arbovirus “may exist” in the future.  In response to input from 75 legislators, the Joint Committee on Public Health made significant improvements to the bill, including– Giving property owners 48-hour notification before a spray event; Providing public notice as to what chemical agents will be sprayed; and Sunset emergency powers within two years, and authorization of a comprehensive stakeholder-driven evaluation of how the Commonwealth deals with mosquito control. “We applaud lawmakers for significantly improving accountability and transparency, but more work is needed,” […]

(Beyond Pesticides, May 27, 2020) Research published last week in the journal Scientific Reports uncovers new ways that neonicotinoid (neonic) insecticides hamper the growth and development of honey bee colonies. As new data on the link between neonics and pollinator declines continues to flow from academic institutions, the U.S. Environmental Protection Agency (EPA) has re-opened the public comment period on its proposal to renew the registration of these highly toxic insecticides. The present study, led by German scientists at Goethe University Frankfurt am Main, uses new video techniques to observe the behavior of honey bees behind a glass-pane hive. Researchers filmed their study from start to finish, focusing on the effect of chronic sublethal doses of the neonciotinoids clothianidin and thiacloprid. Colonies were fed these chemicals in a sugar syrup over the course of three weeks in May and June. Even at low levels, scientists found significant changes to brood rearing and development, and the behavior of nurse bees. Nurse bees play a pivotal role in honey bee colonies. These young worker bees clean out old brood cells (where larvae develop), feed larval bees after a queen lays its eggs, and finish by capping a brood cell with wax. Within […]

(Beyond Pesticides, May 26, 2020) Across the pond, the European Commission (EC) has announced plans to protect biodiversity and build a more sustainable food system, and identified the reduction of pesticide use  and the expansion of organic agriculture as pillars of the scheme. The EC expects that the initiative, which will require EU member states’ endorsement, will advance progress on the EU goal of eliminating greenhouse gas emissions by 2050, given that 10% of emissions arise from the agricultural sector. The EC’s goals are important and laudable, but Beyond Pesticides is clear: reduction of pesticide use in service of them is not an adequate strategy to ensure long-term success. Genuine success requires the elimination of the use of synthetic chemical pesticides, fertilizers, and other toxic inputs, and the transition to agricultural and land management systems that work with nature, rather than fight against it. Regenerative, organic practices are the path to a livable future, according to Beyond Pesticides. The EC, which is the executive branch of the EU, expects its plan to reduce use of pesticides by 50% by 2030; reduce use of antimicrobial chemicals, including antibiotics, in fish and animal farming by 50%; dedicate a minimum of 25% of arable […]

(Beyond Pesticides, May 21, 2020) Use of the herbicide dicamba increases humans’ risk of various acute and chronic cancers, according to research published in the International Journal of Epidemiology by the National Institutes of Health (NIH). Many pesticides are “known or probable” carcinogens (cancer-causing agents), and their widespread use only amplifies chemical hazards, adversely affecting human health. However, past research lacks comprehensive information regarding human health effects associated with long-term pesticide use. This study highlights the significant role that long-term research plays in identifying potential health concerns surrounding registered pesticides, especially as the Environmental Protection Agency (EPA) plans to reaffirm its decision to allow dicamba use on genetically engineered (GE) crops. Nathan Donley, Ph.D., a scientist with the environmental health program at the Center for Biological Diversity, comments: “This sweeping study exposes the terrible human cost of the EPA’s reckless decision to expand the use of dicamba. […]For the EPA to approve widespread use of this poison across much of the country without assuring its safety to people and the environment is an absolute indictment of the agency’s persistent practice of rubber-stamping dangerous pesticides.” Dicamba—a benzoic acid chemical that controls broadleaf weeds—is one of the most widely applied herbicides in corn production. As a result of weed resistant to […]

(Beyond Pesticides, May 18, 2020) On May 15, 2020, Beyond Pesticides sued Exxon Mobil Corporation (Exxon) for “false and deceptive marketing,” misrepresenting to consumers that it “has invested significantly in the production and use of “clean” energy and environmentally beneficial technology.” The truth, according to the complaint (Beyond Pesticides v. Exxon Mobil Corporation) filed in DC Superior Court, is that the vast majority of Exxon’s business continues to be in the production and use of petroleum, natural gas, and petrochemicals, including pesticides. These activities are significant contributors to the climate crisis and the decline of pollinators and biodiversity, threatening the viability of biological systems that sustain life, according to Beyond Pesticides. “ExxonMobil’s advertising and marketing mislead the public by presenting ExxonMobil’s clean energy activities as a significant proportion of its overall business,” according the lawsuit. In an age where consumers are looking to support responsible companies that are supporting and transitioning away from fossil fuel-based energy and chemical products, “ExxonMobil is able to capture the growing market of consumers,” according to the complaint. Surveys have found that consumers are more likely to buy products and services based on corporate image. For example, a 2015 Nielsen survey finds that the majority […]

(Beyond Pesticides, April 30, 2020) Chemical-intensive farming of crops for animal fodder powers the global market for highly hazardous pesticides (HHPs), according to data analyzed by Unearthed, and the Swiss NGO Public Eye. Animal fodder production not only intensifies global pollution, but it also increases pesticide exposure and degrades human, animal, and environmental health. This data analysis supports advocates advancing pesticide policies to eliminate HHPs by identifying which toxic chemicals lead global pesticide sales. However, it will take more than eliminating the worst chemicals to address the impending biodiversity collapse and the climate crisis, according to experts who point to the need for an urgent shift to organic land and agricultural management practices. United Nations’ (UN) special rapporteur on toxic substances and human rights, Baskut Tuncak, says, “There is nothing sustainable about the widespread use of highly hazardous pesticides for agriculture. Whether they poison workers, extinguish biodiversity, persist in the environment, or accumulate in a mother’s breast milk, these are unsustainable, cannot be used safely, and should have been phased out of use long ago.”  Unearthed and Public Eye investigated over $23 billion in global pesticide market sales to determine the proportion of pesticides considered highly hazardous by the Pesticide Action Network’s […]

(Beyond Pesticides, April 29, 2020) The terrible reputation with which bats are commonly saddled — especially now, because of their association with the origins of the family of coronaviruses — is undeserved. These nocturnal insect vacuums are fascinating, flying mammals that are under-appreciated, not least for their performance of important services for ecosystems, and for human health and agriculture. Investigators from Israel’s Ben-Gurion University and the Section for Evolutionary Genomics at Copenhagen’s Natural History Museum recently published a study demonstrating that bats can be a mighty tool against pests that damage cotton crops. Bats’ pest control services — relatively invisible because they do their insect marauding at night when humans are not watching — represent an excellent, nontoxic, biological control for some agricultural pests, as well as for mosquitoes that may be human disease vectors. Advocates say that these services should be well considered before any decision to use toxic pesticides that can harm bats, as Beyond Pesticides has covered. The study, “An appetite for pests: Synanthropic insectivorous bats exploit cotton pest irruptions and consume various deleterious arthropods,” was published in Molecular Ecology. [Note: “synanthropic” species are those plants or animals that live near, and benefit from, association with humans […]

(Beyond Pesticides, April 28, 2020) Roughly a quarter of the global insect population has been wiped out since 1990, according to new research published in the journal Science. Billed as one of the most comprehensive assessments to date, the study finds significant overall insect declines, but notes of some specific bright spots. While variation in the ongoing crisis is to be expected, ultimately the trends in the data show the need for immediate policy and regulatory action to protect the insect world as the foundation of global food webs. The team of European scientists behind the research analyzed 166 studies spread out over 41 countries, and consisting of over 1,600 sites, with data beginning in the mid-1920s. Overall trends found declines in terrestrial insect biomass to be nearly 1% each year (~9% each decade). However, contrasting this data was a bright spot – freshwater insects were found to be increasing at an annual rate just over 1% (~11% each decade). The authors caution, however, that because fresh water covers only 2.4% of the earth’s surface, the increase may not be a good spatial representative of broader trends. While North America appeared to show more significant declines when compared to Europe, […]

(Beyond Pesticides, April 23, 2020) Pesticide spray drift from adjacent farmlands expose butterfly larvae to lethal pesticide concentrations, according to research published in Environmental Toxicology and Chemistry by Iowa State University (ISU). Lack of previous experimental pesticide toxicity data makes it unclear as to what degree insecticides impact monarch butterfly (Danaus plexippus) productivity in milkweed (Asclepias spp.) habitats near pesticide-treated pasture. This study adds weight to the idea that pesticides are playing a role in the ongoing decline of this iconic butterfly, as researchers find insecticide drift from adjacent fields to be strongly associated with larval mortality. Future monarch butterfly conservation efforts should consider risks stemming from pesticide exposure when developing butterfly rehabilitation efforts, according to advocates. As co-author Niranjana Krishnan (ISU graduate student) states, “In order to make the best decisions about how and where to plant milkweed, we first need to find basic toxicity and exposure data.”  ISU researchers established monarch butterfly colonies by collecting larvae from roadside milkweeds, which they then reared in the laboratory for incubation. To analyze the relative toxicity of various insecticides on monarch butterflies, researchers applied normal field-application rates of each pesticide at different larval development stages. Scientists used a bioassay to measure the […]

(Beyond Pesticides, April 16, 2020) Pesticide exposure in farmland birds is a concomitant of pesticide-treated muesli (cereal) seed commonly planted during winter months, according to research published in Science of the Total Environment by United Kingdom (UK) scientists. Not only do pesticide-treated seeds pose the highest dietary risk to birds, but pesticide-treated seeds also go underreported as farmers often lack knowledge of what pesticides are on the seeds they plant. This study emphasizes the global effects of treated seeds, and their corresponding pesticide exposure, on bird species. Future risk assessments for bird should address these implications when implementing agricultural pesticide policies.  Farmers use of treated seeds exposes farmland birds to pesticides like neonicotinoids (neonics), including clothianidin (CLO). Pesticide residues then accumulate in the birds’ blood. UK scientists examined pesticides in farmland bird blood samples to connect the field-based use of treated seeds to clothianidin exposure patterns. At the time of this study, CLO was the most widely used pesticide on treated winter cereal seeds in the UK. Scientists recorded the presence of neonicotinoid-treated seed in 39 fields of 25 farms after seeding. Camera traps monitored farmland birds’ seed consumption. To measure CLO concentration in treated seed and seedling, scientists used liquid chromatography-tandem mass spectrometry to identify inorganic, organic, […]