(Beyond Pesticides, July 10, 2017) The state of California has listed glyphosate, the active ingredient in the popular Roundup, as a known carcinogen under its Proposition 65 law. This listing went into effect July 7, 2017. Now, state officials have to develop guidelines for product labels and determine what level of exposure to the pesticide will put people at risk for developing cancer. Some have argued that the state’s proposed levels are not protective enough. Meanwhile, the state continues to face pressure from Monsanto, maker of glyphosate, which continues to challenge the decision to list the chemical as a known cancer-causing agent. California’s decision to list glyphosate as a carcinogen was prompted by the International Agency for Research on Cancer’s (IARC) finding in 2015 that it is a “probable” human carcinogen. This classification was based on sufficient evidence of carcinogenicity in experimental animals. Later that year, California Environmental Protection Agency’s Office of Environmental Health Hazard Assessment (OEHHA) announced that it intended to list glyphosate as a cancer-causing chemical under California’s Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65).  Under California law, Proposition 65 requires that certain substances identified by IARC be listed as known cancer-causing chemicals. Glyphosate’s listing became effective […]

(Beyond Pesticides, July 7, 2017) The active ingredients in commonly used bug sprays such as RAID leave significant residues that persist for over a year in the home, according to a study published by Brazilian researchers in the journal Environmental Toxicology and Chemistry. The pesticides tested, synthetic pyrethroids, have been linked to a range of health effects, most notably in children. The results of this study add to calls for homeowners to rethink a chemical-based approach to home pest control, in favor of simple, non-toxic practices. In the recent study, researchers compared the breakdown time of two synthetic pyrethroids, cypermethrin and beta-cyfluthrin, between laboratory conditions and those in an average home. Under lab conditions, with temperature controlled and without sunlight or ventilation, both active ingredients broke down little within the 112 day test period observed. However, the test house, where insecticides were applied according to indoor label conditions, displayed breakdown times similar to the lab results during the first 112 days. Researchers continued their observation of pyrethroids in the home for up to a year, finding after that period 44% of beta-cyfluthrin and 70% cypermethrin remained in household dust samples from the singular, original application. A 2014 study published by […]

(Beyond Pesticides, July 6, 2017) The Washington State Department of Ecology (Ecology) is evaluating a new permit application for the use of imidacloprid, a toxic neonicotinoid, to combat a growing native population of burrowing shrimp that threatens oyster beds in Willapa Bay and Grays Harbor in Washington state. The application was recently submitted to Ecology by a group of oyster farmers from the Willapa Grays Harbor Oyster Growers Association (WGHOGA), who “propose to use the pesticide to treat tide lands to support their aquaculture practices.” Imidacloprid is known to be toxic to bees and aquatic organisms, raising questions on the impacts of its use on the long-term ecological health of the bays. In April 2015, much to the dismay of activists and concerned local residents, Ecology approved a permit submitted by oyster farmers for the use of imidacloprid to combat burrowing shrimp in these aquatic ecosystems. But with a nationwide public outcry, the permit was withdrawn in May 2015. The recent request that was submitted differs in several ways from this 2015 permit, including: The new permit proposes treating 485 acres in Willapa Bay and 15 acres in Grays Harbor, compared to 2,000 acres combined from both water bodies in the 2015 permit. The oyster farmers […]

(Beyond Pesticides, July 5, 2017) The Hoverfly is July’s pollinator of the month. Hoverflies, also known as flower flies and syrphid flies, are members of the “true fly” order Diptera, family Syrphidae. There are roughly 200 genera and 6,000 species of hoverflies throughout the world. Range Hoverflies are commonly seen in in flowering landscapes across the globe. According to the United States Forest Service (USFS), there are almost 900 species of the family in North America. They live in a range of habitats, including decaying wood, still and moving freshwater, on plants, and sometimes even in other insects’ nests. They are not often found in desert regions, and no known species have been discovered in Antarctica. Diet and Pollination The diet of hoverflies varies widely among species. In general, they are vital pollinators for a range of common flowering plants. Most adult flower flies have generalized mouthparts structured to sap up nectar and harvest pollen from open flowers; others use a long, beak-like proboscis to imbibe nectar from tube-shaped flowers; and some reportedly feed on the honeydew secreted from aphids. Because certain syrphid flies will feed on human perspiration, they are often mistaken for sweat bees. Unlike sweat bees, however, […]

(Beyond Pesticides, July 3, 2017) A two-year long study conducted at 33 sites in multiple European countries to assess the effects of neonicotinoid (neonics) insecticides on three bee species in real-world environmental conditions confirms that these pesticides have a deleterious effect on bee survival. The study, the largest of its kind, explored the role of the agricultural use of neonics as seed coatings on bee health and fnds that the pesticides are persistent in the environment, contaminating pollen and nectar that bees forage, reducing colony fitness. The results of the study support ongoing calls for a ban on neonics, including a European Union (EU) wide ban proposed earlier this year. The new research, published in the prestigious peer-review journal Science, which was in part funded by Bayer and Syngenta – manufacturers of the pesticides, encompassed large field experiments to assess the effects of neonic-treated crops on various bee species –honey bees (Apis mellifera), bumble bees (Bombus terrestris), and solitary bees (Osmia bicornis)– across three European countries (Germany, Hungary and the United Kingdom). The study examines the impacts of clothianidin and thiamethoxam, the neonics frequently used as seed coatings of oil seed rape (canola), and used in the fields under study. […]

(Beyond Pesticides, June 30, 2017) Scott Pruitt, Administrator of the U.S. Environmental Protection Agency (EPA), met privately with Dow Chemical’s CEO several weeks before reversing EPA’s tentative decision to ban chlorpyrifos, according to records recently obtained by the Associated Press (AP). A copy of Mr. Pruitt’s schedule reveals he met with Dow CEO, Andrew Liveris, on March 9 at a Houston hotel and “twenty days later Pruitt announced his decision to deny a petition to ban Dow’s chlorpyrifos pesticide from being sprayed on food.” At a hearing this week, U.S. Senator Tom Udall (D-NM) pressed Mr. Pruitt to name a peer-reviewed study that indicates that chlorpyrifos is safe. Mr. Pruitt answered by saying that “he had relied on ‘interagency dialogue’ with USDA [U.S. Department of Agriculture] before denying the petition to ban the chemical.” In a congressional hearing earlier this month regarding chlorpyrifos’ safety, Mr. Pruitt stated that his decision was founded on “meaningful data and meaningful science.” However, AP followed up with EPA to provide details on this science, and Mr. Pruitt’s office replied with quotes from trade groups and USDA, but failed to provide any scientific studies on the chemical’s safety. In March 2017, in an about-face, EPA’s Administrator […]

(Beyond Pesticides, June 29, 2017) On June 16, the European Chemicals Agency (ECHA) decided to classify bisphenol A (BPA) as an endocrine disruptor, and as a substance of “very high concern” due to “probable serious effects to human health.” The classification follows a proposal by the French food security agency (ANSES), which was made earlier this year. The committee, comprised of representatives from all 28 European Union EU countries, agreed to the classification unanimously. With pressure from environmental groups and others, the European Commission (EC) is working to define scientific criteria that will be used to identify endocrine disrupting chemicals (EDCs), and lead to more effective regulation in EU countries. In June 2016, the EC issued weak regulations on endocrine disruptors in pesticide products, undermining the precautionary legal standard that governs pesticide usage in Europe. Many scientists and advocacy organizations criticized the proposed regulations for creating an impossibly high burden of proof for defining harm from endocrine disrupting pesticides and other products. EDCs contained in common household products such as detergents, disinfectants, furniture, plastics, and pesticides, interfere with the body’s hormone system either by mimicking naturally produced hormones, blocking hormone receptors in cells, or effecting the transport, synthesis, metabolism or excretion […]

(Beyond Pesticides, June 28, 2017) In a move that could portend broader action in the case of environmental crimes, Michigan Attorney General Bill Schuette has filed charges of involuntary manslaughter against five state officials in a death resulting from Flint’s water crisis. While most criminal charges resulting from environmental mishaps and disasters are filed against corporations or their CEOs, one law review article notes, “Prosecutors have become aggressive in seeking out responsible parties. The net of criminal liability is no longer limited to those directly involved in causing the disaster, but may now extend to those involved in the response, as well as officials whose derelictions in office helped create the risk.” In announcing the charges, the Attorney General stated, “All defendants charged with involuntary manslaughter are charged in relation to the death of Robert Skidmore, 85, of Mt. Morris, Michigan. Skidmore died of Legionnaires’ disease after many others had been diagnosed with the illness, yet no public outbreak notice had been issued. The charges allege failure to notify and lack of action to stop the outbreak allowed the disease to continue its spread through Flint’s water system.” Involuntary manslaughter is punishable by up to 15 years in prison, and/or a $7,500 […]

(Beyond Pesticides, June 27, 2017) French Prime Minister, Edouard Philippe, is retaining the neonicotinoid (neonic) pesticide ban, which is set to go into effect in 2018 and is stronger than the current European Union restrictions on neonics. This decision follows a disagreement with French Agriculture Minister, Stephane Travert, who was in favor of relaxing the ban and told media outlets that he wants to address “the possibility of a number of exemptions until we find substitution products.” In July 2016, lawmakers in France approved plans to ban neonicotinoid pesticides by 2018, based on their link to declining populations of pollinators, specifically bees. The outright ban on neonicotinoid pesticides in France was adopted by a narrow majority of the country’s National Assembly, as part of a bill to protect biodiversity. In March 2017, the European Commission (EC) proposed a complete ban of agricultural uses of the widely used bee-toxic neonicotinoid pesticides across Europe under draft regulations. The EC cites neonicotinoids’ “high acute risks to bees.” In 2013, three neonicotinoids were temporarily banned because of concerns about their high toxicity to bees. A vote by member states is still being awaited. In 2013, the European Commission voted to suspend the use of the neonicotinoid pesticides […]

(Beyond Pesticides, June 26, 2017) A new report released last week by the U.S. Environmental Protection Agency’s (EPA) Office of the Inspector General finds that the agency must collect and assess information on chemical mixtures and potential synergistic effects in order to improve oversight over pesticide registrations and management of developing herbicide resistance. Synergy results when the mixture of chemicals creates effects greater than the aggregation of individual effects, leading to underestimated toxic impacts on human and environmental health. EPA’s Office of Chemical Safety and Pollution Prevention states it will consider how best to use synergistic effects data for pesticide registration decisions by 2019. The report, released June 21, 2017, EPA Can Strengthen Its Oversight of Herbicide Resistance With Better Management Controls, is the result of an assessment into EPA’s management and oversight of resistance issues related to herbicide-resistant genetically engineered (GE) crops. The report finds, “EPA uses the pesticide registration process to collect information on human health and environmental risks from pesticides used on herbicide-resistant weeds, but no information is collected regarding synergism.” It states that information on synergy is important because it allows EPA “a greater ability to assess human health and environmental risks combined with real-world pesticide […]

(Beyond Pesticides, June 23, 2017) In a packed hearing room, the Portland, Maine City Council Sustainability and Transportation Committee heard community members testify in support of an ordinance to restrict pesticides on playing fields, parks, and private lawns for nearly three hours on Wednesday night. The hearing focused on a draft pesticide policy that was recently released by the Pesticide and Fertilizer Task Force, set up by Mayor Ethan Strimling. A range of community members testified, including doctors, parents, organic land managers, an organic products retailer, and public health advocates. Beyond Pesticides’ executive director, Jay Feldman, was at the hearing to support the adoption of ordinance language similar to that adopted by neighbor city South Portland in September 2016. In reaction to the Task Force proposal, which advances an undefined integrated pest management (IPM) approach that allows the use of “least toxic” pesticides, Mr. Feldman testified, “An ordinance requires specificity if it is to accomplish the goals that the community embraces –safe playing fields, parks, playgrounds, and a community that does not allow the poisoning of soil, air, and water.” The lack of specificity in the draft contrasts with the South Portland ordinance, which adopts a list of allowed materials and envisions […]

(Beyond Pesticides, June 22, 2017) On Tuesday, a lawsuit was filed in a Wisconsin federal court against Monsanto, the manufacturer of Roundup brand herbicides, and Scotts Miracle-Gro Company, a marketer of Roundup brand products. The complaint, filed by six consumers from states around the country, focuses on the promotion, marketing, and sale of Roundup brand products, rather than physical injury from the pesticide products. The lawsuit alleges that the Monsanto and Scotts label, advertise, and promote their Roundup products with the “false statement that Roundup’s active ingredient, glyphosate, targets an enzyme that is not found ‘in people or pets.’” Plaintiffs assert that this is a false and deceptive claim, as this enzyme is found in the gut bacteria of people and pets and glyphosate can disrupt the health and functioning of their immune system. This suit follows on the heels of and mirrors the lawsuit filed by Beyond Pesticides and Organic Consumers Association in April 2017 against Monsanto for misleading the public by labeling the weedkiller Roundup as “target[ing] an enzyme found in plants but not in people or pets.” Monsanto aggressively markets Roundup as safe for humans and animals, despite newer studies indicating that glyphosate may be carcinogenic and affect […]

(Beyond Pesticides, June 21, 2017) More than 200 international scientists and medical professionals have signed the Florence Statement on Triclosan and Triclocarban, which states that triclosan and its chemical cousin triclocarban pose a risk to human health, and urges the international community to limit use of these antimicrobials, which are associated with bacterial resistance and no more effective than soap and water. In 2016 after manufacturers failed to prove efficacy, the U.S. Food and Drug Administration (FDA), which regulates cosmetic triclosan products, announced that manufacturers must, by September 2017, remove triclosan from over the counter hand soaps. The agency still allows the chemical in toothpastes and other products, such as hand wipes. The Environmental Protection Agency (EPA), which regulates triclosan in household items, textiles and plastics, still permits wide use of the chemical in a range of products. The Florence Statement on Triclosan and Triclocarban is “based on extensive peer-reviewed research,” and “concludes that triclosan and triclocarban are environmentally persistent endocrine disruptors that bioaccumulate in and are toxic to aquatic and other organisms.” The statement includes evidence of human health threats, and provides recommendations intended to mitigate harm from triclosan, triclocarban, and other similar antimicrobials. The recommendations are listed below: “Avoid […]

(Beyond Pesticides, June 20, 2017) As Pollinator Week 2017 kicks off, the Arkansas State Plant Board’s (ASPB) Pesticide Committee coincidentally voted unanimously to recommend a ban on the use and sale of the habitat-eliminating herbicide dicamba in the state. Motivated by the crop damage caused by dicamba drift on to neighboring cropland, the full ASPB is expected to issue its recommendation today, which, if passed, will be sent to Governor Asa Hutchinson (R) for final approval. The move is the latest in a series of crises that began when multinational chemical company Monsanto began selling soybeans genetically engineered (GE) to tolerate dicamba without its accompanying herbicide, leading to off-label uses of older dicamba products. The growth of herbicide use in genetically engineered herbicide-tolerant crops is contributing to a loss of habitat for pollinators. Of particular note is the loss of milkweed habitat caused by herbicide drift. According to the U.S. Environmental Protection Agency’s Risk Management Approach to Identifying Options for Protecting the Monarch Butterfly (June 24, 2015), “Numerous publications have highlighted the importance of the common milkweed (Asclepias syriaca L.) as a critical food resource for monarch butterfly larvae (Danaus plexippus L.), and have emphasized the importance of conservation of milkweed to […]

(Beyond Pesticides, June 19, 2017) Farmworker and health organizations have sued the U.S. Environmental Protection Agency (EPA) following the agency’s announcement last month that it will delay for one year the implementation of a final rule that revised and updated protections for certified pesticide applicators. Earthjustice and Farmworker Justice are co-counsel on the case. The rule, the Certification of Pesticide Applicators (CPA) rule, includes much needed requirements like mandatory age minimums, as well as better training for pesticide applicators to protect workers and the public from poisoning by the most toxic pesticides. First enacted in 1974, the Certification of Pesticide Applicators Rule  was revised and made final on January 4, 2017, and was scheduled to go into effect March 6, 2017. It outlines regulations regarding the certification of applicators of restricted use pesticides (RUPs)- some of the most hazardous pesticides. The rule ensures that applicators of RUPs get adequate training and establishes a minimum age of 18 for pesticide applicators. It also requires that applicators be able to read and write; increases the frequency of applicator safety training to every year; and improves the quality of information that workers receive about the pesticides that they apply in agricultural, commercial, and residential […]

(Beyond Pesticides, June 16, 2017) In recognition of the importance of pollinators to food production during National Pollinator Week, June 19-25, Beyond Pesticides and the Center for Food Safety are teaming up with restaurants in the Nation’s Capital for the second annual “Made by Pollinators” campaign. The campaign will bring awareness to the issue of pollinator decline, which pesticides play a leading role in through lethal and chronic effects on these critical species. Participating restaurants, including Busboys and Poets, Lavagna, Logan Tavern, Restaurant Nora, Tabard Inn, and Vegetable and Butcher, will educate the public on the importance of pollinators by annotating their menus or offering pollinator-inspired specials that contain ingredients reliant on pollinators for production. One out of every three bites of food requires pollination, a fact these environmentally conscious restaurants will share with their patrons during National Pollinator Week 2017. Busboys and Poets remarked that, “Without bees, we wouldn’t be able to serve 99% of our menu. Our participation in Pollinator Week is a small step toward a movement to promote the health of our planet’s ecosystems.” By sourcing a multitude of their ingredients from organic farms, Busboys and Poets does their part to support pollinator health. Lavagna stated, “We’re thrilled to participate in […]

(Beyond Pesticides, June 15, 2017) Communities exposed to frequent aerial spraying for mosquito control experience elevated rates of autism diagnoses, according to new research. The study identifies the frequent use of synthetic pyrethroid insecticides, which are linked to neurocognitive and behavioral impacts, among other health effects. Pediatric researchers at Penn State University and the University of California examined communities in eight zip codes in Onondaga County, New York with frequent aerial spray programs for mosquito control, and contrasted these findings with communities in 16 zip codes that do not employ similar pesticide use programs. According to the study, between 2007 and 2009, the average yearly pesticide burden across the eight aerial exposed zip codes was approximately 11,000 kilograms, compared to approximately 4,000 kilograms of pesticide exposure across the 16 control zip codes. The study finds that the zip codes with frequent aerial pyrethroid exposure are 37% more likely to have higher rates of childhood developmental delays and autism spectrum disorder. The researchers acknowledge that the study establishes a correlational, not a causal, link between pyrethroid exposure and autism/developmental disorders, it adds to a growing body of research demonstrating an exposure-effect relationship between the two. Other studies have similarly linked developmental disorders and autism […]

(Beyond Pesticides, June 14, 2017)  Oak trees in Iowa may be the latest victim of widespread chemical-intensive agriculture, according reports in the Des Moines Register. The newspaper indicates that the Iowa Department of Natural Resources (IDNR) has received roughly one thousand calls this spring from residents concerned about the state of their oak trees. Leaves are ‘tattered’ down to the vein, in an appearance one would first think was related to pest damage, according to the newspaper article. However, foresters with IDNR indicate the cause is likely the use of chloroacetanillide herbicides, which are applied throughout the state and region. Advocates say that this situation contributes to mounting environmental problems associated with chemical-intensive food production that support the need for the adoption of non-toxic weed management strategies. Past research has found associations between the use of chloroacetanillide herbicides, such as acetochlor and metolachlor, and oak leaf tatter syndrome. State officials indicate that the increase in resident complaints is likely related to a colder March, which may have retarded leaf development. By the time leaves began unfurling in early spring, herbicide use was at its height, leading to high ambient concentrations of the chemicals in the atmosphere, according to IDNR officials […]

(Beyond Pesticides, June 13, 2017) Prenatal exposure to commonly used mosquito and agricultural insecticides is associated with decreased motor function in infants, according to a study published in Environment International by a team of Chinese and U.S. researchers. The results of the study should give pause to insecticide-heavy efforts to control mosquitoes as the season ramps up this summer and fall. Frequent spraying as part of efforts to control Zika in Southern Florida last year resulted in large protests and calls for a preventive management approach not dependent on toxic chemicals. For the current study, over 350 pregnant Chinese mothers were tested for the presence of organophosphate pesticides in their umbilical cord blood. Researchers looked at exposure to the insecticides naled, methamidophos, trichlorfon, chlorpyrifos, and phorate. After giving birth, their children’s motor function was tested at both six and nine months of age. Tests included an analysis of the infant’s reflexes, locomotion, grasping, stationary and visual-motor integration abilities. Scores were categorized based on gross, fine, and total motor skills, and standardized quotients were created for each of the categories. Of the over 300 mothers, roughly 240 had detectable levels of one of the insecticides in their samples. Although no differences […]

(Beyond Pesticides, June 12, 2017) Once again, there are reports that soybean and cotton fields are being damaged by off-site drift of the toxic herbicide dicamba. Last summer, farmers in Missouri, Arkansas, and Tennessee reported widespread crop damage from dicamba drift, which led to reduced yields. The U.S. Environmental Protection Agency (EPA) launched a criminal investigation at several Missouri locations into what they said was the illegal spraying of dicamba in October 2016. This year, reports of dicamba drift and damage are already being reported in Arkansas, and 25 formal complaints have already been filed, according to the state Plant Board. In summer 2016, illegal applications of dicamba damaged thousands of acres of soybeans, cotton, ornamental trees and fruits and vegetables. After numerous complaints, EPA launched a criminal investigation into the illegal spraying of dicamba, an investigation that is still ongoing. Many suspect that farmers who planted Roundup Ready 2 Xtend® and XTENDFLEX® Cotton, the new dicamba-tolerant genetically engineered (GE) seeds in the region, when faced with a proliferation of pigweed, illegally sprayed dicamba across their fields leading to drift and off-site crop damage to other farmers. This year, although it is too early to say how many acres have been affected or what specific […]

(Beyond Pesticides, June 9, 2017) Last week, it was revealed that the inspector general for the U.S. Environmental Protection Agency (EPA) is investigating potential collusion on glyphosate-related matters between Monsanto and former EPA official, Jess Rowland. In a letter sent to U.S. Representative Ted Lieu, obtained by HuffPost, EPA Inspector General Arthur Elkins Jr. stated that he has asked the “EPA OIG Office of Investigations to conduct an inquiry into several agency glyphosate review-related matters.” According to Michael Hubbard, a retired Special Agent in Charge for the EPA’s criminal investigations division, in an interview with HuffPost, “Inspectors general have wide-ranging authority to investigate matters of corruption at federal agencies. With confirmation that the IG’s office is taking up a probe, it’s likely that IG investigators will begin interviewing Rowland’s former colleagues and bosses, pulling records and looking through his emails.” In March 2017, Congressman Lieu issued the following statement regarding the released files and questions on glyphosate safety. “Reports suggest that a senior official at the EPA worked to suppress a U.S. Department of Health and Human Services review of glyphosate, and may have leaked information to Monsanto. I believe that a Department of Justice investigation is warranted to look […]

(Beyond Pesticides, June 8, 2017) On Monday, numerous organizations filed an administrative appeal to the U.S. Environmental Protection Agency (EPA), seeking to reverse Scott Pruitt’s order to continue allowing the toxic organophosphate insecticide chlorpyrifos in agriculture, and revoke all tolerances (allowed food residues) of the chemical. On the same day, Attorneys General (AGs) from seven states announced legal objections to Scott Pruitt’s order, also calling for a reversal of the decision and a revocation of all tolerances. Allowing the continued use of chlorpyrifos runs counter to findings of independent science and EPA’s own scientists, which establish unacceptable risks to humans and the environment. The administrative appeal, filed by Earthjustice on behalf of 12 environmental, labor, and civil rights organizations, resulted from the decision by EPA to allow the use of chlorpyrifos while it studies the safety of the chemical. The seven AGs, in their filing, are charging that EPA wrongfully approved the continued use of chlorpyrifos in agriculture without first gathering and assessing the full safety data, as required by the U.S. Food, Drug, and Cosmetic Act. Many environmental groups spoke out in favor of these filings. “There’s a good reason this dangerous toxin has been banned from indoor use for more […]

(Beyond Pesticides, June 7, 2017) Fruit flies that developed a genetic resistance to the insecticide DDT have lower success at mating than those without similar changes, according to a study published last month in the journal Behavior Genetics. The results were surprising to researchers, given that the resistance developed through changes to a single allele (a variation of a single gene). “It is amazing that even if all the genes are exactly the same, having this one gene expressed at a higher level has all these effects,” said Professor Nina Wedell, PhD, of the Centre for Ecology and Conservation on Exeter’s Penryn Campus in Cornwall, UK to Phys.org. The study raises possible concerns about the effect of pesticide exposure to non-target (not the focus of pesticide use) insects that are integral to a healthy ecology and food web. In conducting their investigation, researchers studied the biological fitness costs associated with the development of an insecticide resistance gene. After scientists bred resistant flies in the lab, they set up a series of “competitive mating trials,” comparing both courtship behavior and the impact of size on male fruit flies’ mating success. In general, resistant males were found to be smaller than flies that […]