Our warmer than usual winter season has some dogs itching and scratching already. Summertime are bugging them now during what should be the off season. Dr. Brian Killough, a veterinarian at Long Animal Hospital says, “This year we haven’t seen quite …
Pests in the NewsFebruary 22, 2012
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One of the citrus industry’s most feared has been found in a Tulare County citrus grove and agriculture officials are hoping it’s an isolated find. The California Department of Food and Agriculture confirmed in early February that they …
Pests in the NewsFebruary 22, 2012
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 California Farm Bureau |
Spread of citrus pest threatens trees with disease
California Farm Bureau Citrus farmers and pest–control officials continue their work to keep the Asian citrus psyllid out of commercial citrus groves in California, but experts who spoke about the pest threat last week at the World Ag Expo in Tulare urged farmers to be … |
Pests in the NewsFebruary 22, 2012
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Lookouts needed for invasive pests
Alexandria Echo Press Minnesota is looking for volunteers to join the hundreds of citizens who already have stepped up to help keep an eye out for new infestations of emerald ash borer and other destructive invasive pests. Minnesota is looking for volunteers to join the … |
Pests in the NewsFebruary 22, 2012
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Mild winter a joy for rodent haters
Enterprise News But people with a strong aversion to insects probably ought to brace for a rough spring. Some municipal officials and exterminators on the South Shore say fewer rats and mice have been seeking refuge in homes and businesses because the weather this … |
Pests in the NewsFebruary 22, 2012
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Insect populations thrive after Queensland floods
ABC Online Insect repellent is in demand from the charities helping families with flooded homes and farms as mosquito numbers are also increasing in some areas. Dr Lambkin says other insects are also breeding up, providing food for big populations of birds and … |
Pests in the NewsFebruary 22, 2012
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Insect Spotlight: Stink bugs could be new pest coming down the pike
Tri-State Neighbor For the most part, they are just part of the background noise of insect communities, neither harming nor hurting crop production. Elsewhere in the world, especially in South America, stink bugs comprise some of the more important pests encountered by … Seasonally confused insectsLynchburg News and Advance |
Pests in the NewsFebruary 22, 2012
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QUESTION:
My question is concerning pesticide resistance and cockroaches. I realize that rotating the pesticides and type of pesticides is a good method for avoiding pesticide resistance, but if you do have pesticide in your inventory that roaches have developed resistance to would it be possible to bring that pesticide back into rotation 9 to 18 months later? My thinking is that the product should be out of rotation long enough and the resistance developed could possibly be defeated because they have not been exposed to that particular material in a while.
ANSWER:
I would say that bringing back a product within just a year, when you believe that resistance to it is being shown, would be far too early. And, as we have seen with the Common Bed Bug and its resistance to pyrethroids, the development of resistance is an evolutionary phenomenon that could linger in the genetic makeup of an organism for a very long time. Because of the constant exposure to DDT when it was first introduced for bed bug control these bugs quickly built up resistance to the molecule, and this resistance was an ability to block the effect – the mode of action – of that molecule on the nervous system of the bed bug. Synthetic pyrethroids were introduced 3 decades later and really not even used heavily on bed bugs for another 20 years, but because the Mode of Action of pyrethroids is exactly the same as the Mode of Action of DDT the resistance popped up rapidly. Clearly the offspring of those bed bugs back in the 1950’s still had the mechanism for resistance built into their genes.
Pest QuestionsFebruary 22, 2012
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 Brisbane Times |
It's raining on cicadas' parade but spiders and others loving the wet
Brisbane Times Photo: Nick Moir FOR most insects, a rainy summer gives life. Many smaller species such as termites, flies and some ants do especially well in unseasonable wet conditions. Most summers they expend a lot of energy finding moisture to avoid shrivelling … |
Pests in the NewsFebruary 21, 2012
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WILKES-BARRE — Wilkes-Barre Area School District expects to treat several rooms in GAR High School this weekend after the discovery of two bed bugs earlier in the week. “A couple of bed bugs were found at GAR,” Superintendent Jeff Namey …
Pests in the NewsFebruary 21, 2012
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