24
Feb
(Beyond Pesticides, February 24, 2022) Widespread, intensive pesticide use for mosquito control has allowed genetic mutations to persist among mosquito populations, causing subsequent resistance to future chemical exposure. According to a study published in Scientific Reports, two common species of female mosquitoes learned to evade pesticides following non-fatal exposure through smell. More concerning is the survival rate of these pre-exposed mosquitoes, as it is more than double that of unexposed mosquitoes. Insects, including mosquitoes, use various sensory and cognitive abilities like vision, smell, and hearing to navigate the ecosystem for survival and reproduction. Mosquitoes associate sensory stimuli like smell to a positive or negative experience, thus facilitating a response. Considering the two species of mosquitoes in this study are a vector for numerous diseases in humans, including dengue and Zika and West Nile viruses. Hence, this study highlights the significance of addressing pest resistance in pest management strategies, particularly to mitigate disease exposure and effects. The study notes, “[The] findings highlight the importance of mosquito cognition as determinants of pesticide resistance in mosquito populations targeted by chemical control.” It is essential to understand insect behavior that propagates vector-borne disease transmission that exacerbates the widespread public health crisis. Scientists attribute memory […]
Posted in Deltamethrin, Malathion, Mosquitoes, Permethrin, Propoxur, pyrethroids, Resistance | No Comments »
08
Jul
(Beyond Pesticides, July 8, 2015)  Last week, after decades of review and known toxic hazards, especially to children, the Environmental Protection Agency (EPA) accepted a proposed cancellation for  a number of indoor uses (including food establishments) and tolerances of propoxur, a carbamate insecticide known for its toxic effects to  children. EPA has received a Section 6(f) request under the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) from the registrant of propoxur to voluntarily cancel certain uses of the carbamate insecticide. The request from the manufacturer, Wellmark International, requests cancellation of  indoor aerosol, spray and liquid formulations of propoxur, indoor crack and crevice use, and all use in food-handling establishments.  EPA previously agreed to an April 1, 2016 phase out of propoxur in pet collars, but has continued to leave open these other avenues of exposure. The agency will begin accepting comments on its  proposal once it has been published in the Federal Register, which is expected to occur within 10 days of the prepublication signature date. It should be noted that EPA engages in lengthy negotiations with pesticide manufacturers, as is the case with propoxur (see recent announcement on chlorpyrifos), rather than pursuing rigorous regulatory standards through its cancellation or […]
Posted in Announcements, Bedbugs, Chemicals, Endocrine Disruption, National Politics, Pests, Propoxur, Respiratory Problems, Take Action | No Comments »
18
Mar
(Beyond Pesticides, March 18, 2014) The U.S. Environmental Protection Agency (EPA) announced Friday that it has reached agreement with two major pet product companies to cancel flea and tick pet collars containing the insecticide  propoxur. The agreement, with a long phase-out period,  was reached between the agency and the two companies as a result of EPA’s risk assessment in fall 2013, which found unacceptable risks to children from exposure to pet collars containing propoxur. The agency found that children were exposed to propoxur pet collars on the first day following application. Flea and tick collars work by leaving a pesticide residue on dogs’ and cats’ fur, which can be transferred to people by hugging, petting, or coming into contact with the pets. The major source of exposure to these chemicals is from absorption through the skin after directly touching the treated pet. Small children may ingest pesticide residues when they touch a treated cat or dog and subsequently put their hands in their mouth. Under the cancellation agreement, Sergeant’s Pet Care Products, Inc. and Wellmark International will have until April 1, 2015 to continue producing the pet products containing propoxur under the trade names Bansect, Sentry, Zodiac and Biospot, and […]
Posted in Chemicals, Children/Schools, Pesticide Regulation, Pets, Propoxur | No Comments »
25
Jul
(Beyond Pesticides, July 25, 2012) A Texas border study has found that air samples in the homes of pregnant Hispanic women contain multiple household pesticides that could harm fetuses and young children. The first study of its kind conducted by the School of Medicine at The University of Texas Health Science Center San Antonio, finds traces of both household and agricultural pesticides that have been linked to disorders such as autism and attention deficit hyperactivity disorder. The researchers sampled air in 25 households, finding at least five pesticides in 60 percent of the dwellings. Nine other pesticides were identified in less than one-third of the homes. All the women were in the third trimester of pregnancy, when the fetal brain undergoes a growth spurt. Numerous studies have reported birth defects and developmental problems when fetuses and infants are exposed to pesticides, especially exposures that adversely affect mental and motor development during infancy and childhood. This new report is in the summer issue of the Texas Public Health Journal sent to members this week. The study found 92 percent of air samples contained o-phenylphenol, which is used as a fungicide, germicide and household disinfectant, while 80 percent of samples contained chlorpyrifos, […]
Posted in Children/Schools, Chlorpyrifos, Diazinon, Propoxur, Texas, Trifluralin | No Comments »
09
Dec
(Beyond Pesticides, December 9, 2011) A recent study published in the journal NeuroToxicology has found a positive link between exposure to the pesticide propoxur and poor motor development in infants. At the age of two, children exposed to propoxur in the womb experience poor development of motor skills, according to a test of mental development. The study joins numerous others that consistently show birth defects and developmental problems when fetuses and infants are exposed to pesticides. The study, undertaken by researchers at Wayne State University in Michigan, the University of the Philippines, and Davao Regional Hospital in the Philippines, is entitled “Fetal exposure to propoxur and abnormal child neurodevelopment at 2 years of age.” It examines levels of exposure to multiple pesticides in pregnant women living in areas of high pesticide use in the Philippines. Pesticide exposure was monitored by measuring the pesticide content of hair and blood for both mothers and children. The researchers then compare these exposure levels to adverse outcomes regarding the health of the infants once they were born. To accomplish this, the team used a method called path analysis modeling in order to determine what effects the pesticides might have on fetal development. The striking […]
Posted in Bedbugs, Birth defects, Propoxur | No Comments »
19
Apr
(Beyond Pesticides, April 19, 2011) On Saturday, April 16, the Ohio House of Representatives unanimously (97-0) approved a resolution sponsored by State Representative Dale Mallory (D-Cincinnati) regarding bedbugs and propoxur, asking Congress to help convince the U.S. Environmental Protection Agency (EPA) to approve the emergency use of the toxic pesticide. Propoxur, a neurotoxin and probable human carcinogen, has been canceled for indoor residential uses due to the unacceptable risks posed to children’s health and should not be used for indoor treatment. Resolution HR 31, however, urges the use of an emergency exemption under federal law to control bedbugs, a follow-up to an earlier request in 2010. The resolution seeks to invoke a so-called Section 18 emergency use permit , a controversial loophole in the Federal Insecticide Fungicide and Rodenticide Act (FIFRA) that allows for unregistered uses of a pesticide, and in many cases unregistered pesticides, under “emergency circumstances.” In a letter to Administrator Lisa Jackson, dated April 19, 2010, Ohio Governor Ted Strickland supported the state’s request for the exemption claiming, “Without the use of propoxur, there is very little that can be done to meaningfully stop the spread of bed bug infestations.” Environmental and public health groups, including Beyond […]
Posted in Bedbugs, Ohio, Propoxur | 4 Comments »
11
Jun
(Beyond Pesticide, June 11, 2010) The Environmental Protection Agency (EPA) has refused the state of Ohio’s request for an emergency exemption to use the restricted pesticide propoxur in residential settings for control of bed bugs, stating that the chemical “presents unreasonable risk.” Propoxur is a highly toxic, broad spectrum insecticide. All indoor residential uses of this known neurotoxic chemical and possible carcinogen were voluntarily canceled in 2007. The Ohio Department of Agriculture, deeming the increases in bed bug infestations an emergency, requested an exemption to use propoxur in residential areas and in May the Ohio Senate’s Environment and Natural Resources Committee adopted a unanimous resolution urging the EPA to grant it. Beyond Pesticides, with coalition of environmental and public health groups, opposed the request and asked EPA to deny the exemption, citing the serious public health threat associated with the chemical, as well as the availability of alternatives. EPA determined “the requested use presents an unacceptable risk,” according to Administrator Lisa Jackson, in a letter to Ohio Governor Ted Strickland dated June 2, 2010. “Although EPA recognizes the severe and urgent challenges that Ohio is facing from bed bugs, the results of the risk assessment do not support the necessary […]
Posted in Bedbugs, Ohio, Propoxur | 2 Comments »
13
Nov
(Beyond Pesticides, November 13, 2009) The Ohio Department of Agriculture is asking the U.S. Environmental Protection Agency (EPA) to allow an unregistered use of the neurotoxic and cancer causing insecticide propoxur in homes to fight bedbugs in what state officials are describing as an ”˜emergency’ situation. The chemical, o-isopropoxyphenyl methylcarbamate, is in the carbamate family and classified as a probable human carcinogen (Group B2) by EPA, and listed as a known human carcinogen by the state of California. Though EPA allows emergency exemptions for unregistered pesticide uses in agriculture and for public health reasons under a controversial waiver program (Section 18, Federal Insecticide, Fungicide and Rodenticide Act, 40 CFR Part 166), it rarely issues such an exemption for an indoor pesticide use. Columbus, Cleveland, and Cincinnati are all experiencing a surge of bed bug infestations. According to Richard Pollack, a Harvard University public health entomologist, this is probably due to the fact that bedbugs are becoming resistant to many pesticide products that are used today. The use of broad spectrum insecticides, which kill common household insects such as cockroaches, ants and other insects including bed bugs, has resulted in insect resistance to these chemicals. Many of the chemicals used against […]
Posted in Alternatives/Organics, Bedbugs, Ohio, Pesticide Regulation, Propoxur | 1 Comment »
22
Jun
(Beyond Pesticides, June 22, 2009) In April 2009, the U.S. Environmental Protection Agency (EPA) announced that it is intensifying its evaluation of spot-on pesticide products for flea and tick control for pets due to recent increases in the number of reported incidents. Adverse reactions reported range from mild effects such as skin irritation to more serious effects such as seizures and, in some cases, the death of pets. Incidents with flea and tick products can involve the use of spot-on treatments, sprays, collars and shampoos. However, the majority of the incidents reported to EPA are related to flea and tick treatments with EPA-registered spot-on products. Spot-on products are generally sold in tubes or vials and are applied to one or more localized areas on the body of the pet, such as in between the shoulders or in a stripe along the back. This advisory pertains only to EPA-registered spot-on flea and tick products; these products have an EPA registration number on the label. EPA now is evaluating all available data on the pesticides, including reports of adverse reactions, clarity of product use directions and label warnings, product ingredients, market share, and pre-market safety data submitted to the Agency. EPA says […]
Posted in Alternatives/Organics, Chemicals, Disease/Health Effects, Fipronil, Permethrin, Pets, Propoxur, Wildlife/Endangered Sp. | Comments Off on EPA Announces Increased Scrutiny of Flea and Tick Pesticides
28
Apr
(Beyond Pesticides, April 28, 2009) On April 23, 2009, the Natural Resources Defense Council (NRDC) filed a lawsuit, NRDC v. Albertsons, Inc. et al, in California against major pet product retailers and manufacturers for illegally selling pet products containing a known cancer-causing chemical called propoxur without proper warning labels. In new scientific analysis also released the same day, NRDC found high levels of propoxur and tetrachlorvinphos (TCVP), another carcinogenic neurotoxin common in household pet products, on pet fur after use of ordinary flea collars. NRDC is also petitioning the Environmental Protection Agency (EPA), calling for the removal of these chemicals from pet products. “Just because a product is sold in stores does not mean it is safe,” said Gina Solomon, MD, NRDC senior scientist and physician. “Under California law, consumers have a right to know if a flea control product exposes them to health risks before they buy it.” NRDC filed its lawsuit in California Superior Court in Alameda County against 16 retailers and manufacturers including Petsmart, PetCo, and Petstore.com, for failing to comply with California’s Safe Drinking Water and Toxic Enforcement Act, known as Proposition 65, which prohibits businesses from knowingly exposing consumers without proper warning to any chemical […]
Posted in Alternatives/Organics, California, Chemicals, Corporations, Pets, Propoxur, State/Local | 1 Comment »
13
Mar
(Beyond Pesticides, March 13, 2008) Exposure to certain chemicals, including pesticides and nerve agents, explains the high rates of illness in Persian Gulf War Veterans, according to a new study published in the Proceedings of the National Academy of Sciences. Veterans from the 1990-91 conflict have a higher rate of chronic, multi-symptom health problems than either non-deployed personnel or those deployed elsewhere. Symptoms routinely reported by these veterans include fatigue, muscle or joint pain, memory problems, trouble sleeping, rash and breathing problems. Due to the findings, the study author, Beatrice Golomb, M.D., Ph.D., associate professor of medicine at the University of California, San Diego School of Medicine, warns of the potential risk to civilians exposed to pesticides.“Health issues among Gulf War veterans have been a concern for nearly two decades. Now, enough studies have been conducted, and results shared, to be able to say with considerable confidence that there is a link between chemical exposure and chronic, multi-symptom health problems,” said Dr. Golomb. “Furthermore, the same chemicals affecting Gulf War veterans may be involved in similar cases of unexplained, multi-symptom health problems in the general population.”The study synthesized evidence regarding a class of chemicals known as acetylcholinesterase inhibitors (AchEs), including […]
Posted in Acephate, Aldicarb, Bensulide, Carbaryl, Chemicals, Chlorpyrifos, Diazinon, Dichlorvos, Disease/Health Effects, Fenoxycarb, Gulf War Syndrome, Malathion, Parathion, Propetamphos, Propoxur, Trichlorfon | No Comments »
