{"id":26734,"date":"2020-04-09T00:01:26","date_gmt":"2020-04-09T04:01:26","guid":{"rendered":"http:\/\/beyondpesticides.org\/dailynewsblog\/?p=26734"},"modified":"2020-04-22T11:01:46","modified_gmt":"2020-04-22T15:01:46","slug":"honey-bee-queens-exposure-to-pesticides-weaken-reproductive-success-and-colony-development","status":"publish","type":"post","link":"https:\/\/beyondpesticides.org\/dailynewsblog\/2020\/04\/honey-bee-queens-exposure-to-pesticides-weaken-reproductive-success-and-colony-development\/","title":{"rendered":"Honey Bee Queens&#8217; Exposure to Pesticides Weaken Reproductive Success and Colony Development"},"content":{"rendered":"\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright  wp-image-26735\" src=\"http:\/\/beyondpesticides.org\/dailynewsblog\/wp-content\/uploads\/2020\/04\/african-honeybee-hive-queen-workers.jpg\" alt=\"\" width=\"211\" height=\"317\" srcset=\"https:\/\/beyondpesticides.org\/dailynewsblog\/wp-content\/uploads\/2020\/04\/african-honeybee-hive-queen-workers.jpg 910w, https:\/\/beyondpesticides.org\/dailynewsblog\/wp-content\/uploads\/2020\/04\/african-honeybee-hive-queen-workers-200x300.jpg 200w, https:\/\/beyondpesticides.org\/dailynewsblog\/wp-content\/uploads\/2020\/04\/african-honeybee-hive-queen-workers-768x1153.jpg 768w, https:\/\/beyondpesticides.org\/dailynewsblog\/wp-content\/uploads\/2020\/04\/african-honeybee-hive-queen-workers-682x1024.jpg 682w\" sizes=\"auto, (max-width: 211px) 100vw, 211px\" \/>(<em>Beyond Pesticides<\/em>, April 9, 2020) Honey bees (<em>Apis mellifera<\/em>) remain in severe decline, with U.S. beekeepers losing <a href=\"https:\/\/link.springer.com\/article\/10.1007\/s00265-020-2810-9#auth-2\">30% of their managed colonies each year<\/a>. A\u00a0<a href=\"https:\/\/link.springer.com\/article\/10.1007\/s00265-020-2810-9#auth-2\">Texas A&amp;M University (Dr. Juliana Rangel\u2019s laboratory)\u00a0<\/a> study provides evidence that chemical-intensive farming practices contaminate honey bee hives with pesticides that cause developmental delays. Researchers found that toxic pesticides adversely affect honey bee queen physiology and worker bee performance. Moreover, pesticides exacerbate the <a href=\"https:\/\/beyondpesticides.org\/dailynewsblog\/2019\/04\/study-findings-on-pollinator-declines-neonics-increase-honey-bee-vulnerability-to-mites\/\">health risks<\/a> associated with the declining honey bee population. When maturing honey bees&#8217; exposure to pesticides is limited, there is an improvement in honey bee queen health and colony behavior.<\/p>\n<p>In agricultural settings, honey bees are exposed to an amalgamation of pesticides. AAFC and Texas A&amp;M researchers determined which pesticides (miticides, insecticides, and fungicides) are commonly used in combination and then used those pesticide combinations to expose honey bees to field-realistic doses in the lab: <a href=\"https:\/\/beyondpesticides.org\/resources\/pesticide-gateway?pesticideid=35\" target=\"_blank\" rel=\"noopener noreferrer\">tau-fluvalinate<\/a>\u00a0and\u00a0<a href=\"https:\/\/beyondpesticides.org\/resources\/pesticide-gateway?pesticideid=35\" target=\"_blank\" rel=\"noopener noreferrer\">coumaphos<\/a>,\u00a0<a href=\"https:\/\/beyondpesticides.org\/resources\/pesticide-gateway?pesticideid=92\" target=\"_blank\" rel=\"noopener noreferrer\">amitraz<\/a>, or\u00a0<a href=\"https:\/\/beyondpesticides.org\/resources\/pesticide-gateway?pesticideid=16\" target=\"_blank\" rel=\"noopener noreferrer\">chlorothalonil<\/a>\u00a0and\u00a0<a href=\"https:\/\/beyondpesticides.org\/resources\/pesticide-gateway?pesticideid=17\" target=\"_blank\" rel=\"noopener noreferrer\">chlorpyrifos<\/a>. Researchers cultivated maturing honey bee queens in plastic cups coated with either pesticide-free or pesticide-contaminated beeswax. Honey bee queens were transferred into hives upon maturation and bred naturally. Researchers measured their egg-laying frequency along with worker bee entourage size. Post-reproduction, scientists performed a bioassay (a measurement of substance potency or concentration effects on living cells) on the honey bee queens to examine the chemical components of the mandibular (salivary) glands.\u00a0<\/p>\n<p>Pesticide-contaminated beeswax impaired honey bee colonies during the queens\u2019 maturation. This led to reproductive dysfunction that significantly decreased worker bees\u2019 entourage size and the queens\u2019 egg-laying rate. Worker bee performance decreased in response to the queen\u2019s change in pheromone secretions and reproductive ability. Worker bees favored queens raised in pesticide-free conditions and formed larger cohorts to tend to the queen. Co-author Elizabeth Walsh, Ph.D., and researchers at Texas A&amp;M state, \u201cThese results indicate that pesticide contamination of the queen-rearing wax directly affects queen physiology and behavior and further affirm that queen mandibular pheromones seem to act as honest indicators to workers of a queen\u2019s reproductive capacity and overall health.\u201d\u00a0\u00a0<\/p>\n<p>The health of an adult queen can be significantly altered by pesticide exposure during developmental stages. Adverse effects on a queen act as an indicator of the overall fitness of a colony.\u00a0<a href=\"https:\/\/beyondpesticides.org\/dailynewsblog\/2015\/10\/study-finds-neonics-severely-affect-health-of-honey-bee-queens\/\">Much research<\/a> on honey bee health focuses on the specific class of <a href=\"https:\/\/beyondpesticides.org\/programs\/bee-protective-pollinators-and-pesticides\/chemicals-implicated\">neonicotinoid<\/a> (neonic) insecticides and its associations with diminished grooming and health. Exposure to neonics has been linked to the decline of pollinators worldwide. Not only do these chemicals weaken worker bee flight behavior directly, but also indirectly impacts worker bee performance. This research broadens the understanding of the range of pesticides that can harm honey bees.\u00a0<\/p>\n<p>Pesticides intensify honey bees\u2019 vulnerability to health risks (such as pathogens and parasites), and colony collapse as pesticide-contaminated conditions limit <a href=\"https:\/\/beyondpesticides.org\/dailynewsblog\/2019\/04\/study-findings-on-pollinator-declines-neonics-increase-honey-bee-vulnerability-to-mites\/\">colony productivity, growth, and survival<\/a>. As has been widely reported, <a href=\"https:\/\/beyondpesticides.org\/assets\/media\/documents\/pollinators\/pollinators.pdf\">pollinators<\/a> (such as bee, monarch butterflies, and bats) are a bellwether for environmental stress as individuals and as colonies. To help pollinators by eliminating pollinator-toxic pesticides, support and adopt <a href=\"https:\/\/beyondpesticides.org\/programs\/organic-agriculture\/overview\">organic land management<\/a>, The <a href=\"https:\/\/www.beyondpesticides.org\/pollinators\/index.php\">BEE Protective Campaign<\/a> strives to protect honey bees and other pollinators from pesticides. Learn more about <a href=\"https:\/\/beyondpesticides.org\/assets\/media\/documents\/pollinators\/nolongeraBIGmystery.pdf\">bee pollinator decline,<\/a>\u00a0<a href=\"http:\/\/action.beyondpesticides.org\/o\/7106\/p\/salsa\/web\/common\/public\/signup?signup_page_KEY=7574\">pesticide-free zones<\/a>,\u00a0<a href=\"https:\/\/www.beyondpesticides.org\/assets\/media\/documents\/pollinators\/documents\/BEEProtectiveHabitatGuide.pdf\">bee-friendly habitats<\/a>, and what\u00a0<a href=\"http:\/\/action.beyondpesticides.org\/p\/dia\/action3\/common\/public\/?action_KEY=15118\">you<\/a>, or\u00a0<a href=\"https:\/\/foe.org\/projects\/bee-action\/\">your state representative<\/a>, can do to\u00a0<a href=\"https:\/\/beyondpesticides.org\/programs\/bee-protective-pollinators-and-pesticides\/bee-protective\">protect our pollinators<\/a>.\u00a0<\/p>\n<p><em>All unattributed positions and opinions in this piece are those of Beyond Pesticides.<\/em><\/p>\n<p>Source:\u00a0<a href=\"https:\/\/link.springer.com\/article\/10.1007\/s00265-020-2810-9\">Springer Link<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>(Beyond Pesticides, April 9, 2020) Honey bees (Apis mellifera) remain in severe decline, with U.S. beekeepers losing 30% of their managed colonies each year. A\u00a0Texas A&amp;M University (Dr. Juliana Rangel\u2019s laboratory)\u00a0 study provides evidence that chemical-intensive farming practices contaminate honey bee hives with pesticides that cause developmental delays. Researchers found that toxic pesticides adversely affect honey bee queen physiology and worker bee performance. Moreover, pesticides exacerbate the health risks associated with the declining honey bee population. When maturing honey bees&#8217; exposure to pesticides is limited, there is an improvement in honey bee queen health and colony behavior. In agricultural settings, honey bees are exposed to an amalgamation of pesticides. AAFC and Texas A&amp;M researchers determined which pesticides (miticides, insecticides, and fungicides) are commonly used in combination and then used those pesticide combinations to expose honey bees to field-realistic doses in the lab: tau-fluvalinate\u00a0and\u00a0coumaphos,\u00a0amitraz, or\u00a0chlorothalonil\u00a0and\u00a0chlorpyrifos. Researchers cultivated maturing honey bee queens in plastic cups coated with either pesticide-free or pesticide-contaminated beeswax. Honey bee queens were transferred into hives upon maturation and bred naturally. Researchers measured their egg-laying frequency along with worker bee entourage size. Post-reproduction, scientists performed a bioassay (a measurement of substance potency or concentration effects on living cells) on [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,33,104,85,331,347,328,93,275,421],"tags":[444,443,442,445],"class_list":["post-26734","post","type-post","status-publish","format-standard","hentry","category-chlorothalonil","category-chlorpyrifos","category-coumaphos","category-endocrine-disruption","category-fluvalinate-chemicals","category-increased-vulnerability-to-diseases-from-chemical-exposure","category-neonicotinoids","category-pollinators","category-reproductive-health","category-synergistic-effects","tag-endocrine-disruption","tag-honeybee","tag-pollinators","tag-reproductive-dysfunction"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Honey Bee Queens&#039; Exposure to Pesticides Weaken Reproductive Success and Colony Development - Beyond Pesticides Daily News Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/beyondpesticides.org\/dailynewsblog\/2020\/04\/honey-bee-queens-exposure-to-pesticides-weaken-reproductive-success-and-colony-development\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Honey Bee Queens&#039; Exposure to Pesticides Weaken Reproductive Success and Colony Development - Beyond Pesticides Daily News Blog\" \/>\n<meta property=\"og:description\" content=\"(Beyond Pesticides, April 9, 2020) Honey bees (Apis mellifera) remain in severe decline, with U.S. beekeepers losing 30% of their managed colonies each year. A\u00a0Texas A&amp;M University (Dr. Juliana Rangel\u2019s laboratory)\u00a0 study provides evidence that chemical-intensive farming practices contaminate honey bee hives with pesticides that cause developmental delays. Researchers found that toxic pesticides adversely affect honey bee queen physiology and worker bee performance. Moreover, pesticides exacerbate the health risks associated with the declining honey bee population. When maturing honey bees&#8217; exposure to pesticides is limited, there is an improvement in honey bee queen health and colony behavior. In agricultural settings, honey bees are exposed to an amalgamation of pesticides. AAFC and Texas A&amp;M researchers determined which pesticides (miticides, insecticides, and fungicides) are commonly used in combination and then used those pesticide combinations to expose honey bees to field-realistic doses in the lab: tau-fluvalinate\u00a0and\u00a0coumaphos,\u00a0amitraz, or\u00a0chlorothalonil\u00a0and\u00a0chlorpyrifos. Researchers cultivated maturing honey bee queens in plastic cups coated with either pesticide-free or pesticide-contaminated beeswax. Honey bee queens were transferred into hives upon maturation and bred naturally. Researchers measured their egg-laying frequency along with worker bee entourage size. Post-reproduction, scientists performed a bioassay (a measurement of substance potency or concentration effects on living cells) on [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/beyondpesticides.org\/dailynewsblog\/2020\/04\/honey-bee-queens-exposure-to-pesticides-weaken-reproductive-success-and-colony-development\/\" \/>\n<meta property=\"og:site_name\" content=\"Beyond Pesticides Daily News Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/beyondpesticides\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/beyondpesticides\/\" \/>\n<meta property=\"article:published_time\" content=\"2020-04-09T04:01:26+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-04-22T15:01:46+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/beyondpesticides.org\/dailynewsblog\/wp-content\/uploads\/2020\/04\/african-honeybee-hive-queen-workers.jpg\" \/>\n<meta name=\"author\" content=\"Beyond Pesticides\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@ByondPesticides\" \/>\n<meta name=\"twitter:site\" content=\"@ByondPesticides\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Beyond Pesticides\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/beyondpesticides.org\/dailynewsblog\/2020\/04\/honey-bee-queens-exposure-to-pesticides-weaken-reproductive-success-and-colony-development\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/beyondpesticides.org\/dailynewsblog\/2020\/04\/honey-bee-queens-exposure-to-pesticides-weaken-reproductive-success-and-colony-development\/\"},\"author\":{\"name\":\"Beyond Pesticides\",\"@id\":\"https:\/\/beyondpesticides.org\/dailynewsblog\/#\/schema\/person\/1b5c0a0981b549cc5b628770073031f4\"},\"headline\":\"Honey Bee Queens&#8217; 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The founders, who established Beyond Pesticides (originally as National Coalition Against the Misuse of Pesticides) as a nonprofit membership organization in 1981, felt that without the existence of such an organized, national network, local, state and national pesticide policy would become, under chemical industry pressure, increasingly unresponsive to public health and environmental concerns. Beyond Pesticides believes that people must have a voice in decisions that affect them directly. We believe decisions should not be made for us by chemical companies or by decision-makers who either do not have all of the facts or refuse to consider them. Learn more about our work, read A Year in Review\u20142021, our accomplishments are your victories! Beyond Pesticides seeks to protect healthy air, water, land, and food for ourselves and future generations. By forging ties with governments, nonprofits, and people who rely on these natural resources, we reduce the need for unnecessary pesticide use and protect public health and the environment. Beyond Pesticides provides hands-on services to the public and supports local action by: identifying and interpreting hazards; and, designing safe pest management programs. With the information provided by Beyond Pesticides, people may not only be able to make informed choices and adopt practices that protect themselves and their families from unnecessary exposure to pesticides, but they will be able to effect changes on community-wide pest management decisions and policies that govern pesticide use, such as pesticide uses in parks, schools, for community insect control and along roadsides. 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A\u00a0Texas A&amp;M University (Dr. Juliana Rangel\u2019s laboratory)\u00a0 study provides evidence that chemical-intensive farming practices contaminate honey bee hives with pesticides that cause developmental delays. Researchers found that toxic pesticides adversely affect honey bee queen physiology and worker bee performance. Moreover, pesticides exacerbate the health risks associated with the declining honey bee population. When maturing honey bees&#8217; exposure to pesticides is limited, there is an improvement in honey bee queen health and colony behavior. In agricultural settings, honey bees are exposed to an amalgamation of pesticides. AAFC and Texas A&amp;M researchers determined which pesticides (miticides, insecticides, and fungicides) are commonly used in combination and then used those pesticide combinations to expose honey bees to field-realistic doses in the lab: tau-fluvalinate\u00a0and\u00a0coumaphos,\u00a0amitraz, or\u00a0chlorothalonil\u00a0and\u00a0chlorpyrifos. Researchers cultivated maturing honey bee queens in plastic cups coated with either pesticide-free or pesticide-contaminated beeswax. Honey bee queens were transferred into hives upon maturation and bred naturally. Researchers measured their egg-laying frequency along with worker bee entourage size. 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