What do “pest control” and public health campaigns against SARS Cov-2 have in common?  Both activities use pesticides.  In the eyes of the law, sanitizer and disinfectant products are considered pesticides.  And if you're a little wary of using pesticides, you should exercise the same caution when choosing and using a disinfectant.

Originally posted by Mike Merchant on Insects in the City.

Let's start with some basics. The term ‘pesticide' refers to any substance or mixture of substances used to prevent, destroy, repel or mitigate a...

Many parks, recreational areas, and outdoor venues in California are home to yellowjacket wasps (Vespula spp.). Yellowjackets are commonly attracted to human food items, creating a serious nuisance and a potential stinging threat. If found, nests (usually underground) can be effectively treated with targeted insecticide applications (e.g., dusts containing pyrethroids). However, baiting could be a feasible alternative method to suppress yellowjackets over a wide  area, especially if nests cannot be located. Currently, only one active ingredient (esfenvalerate) is registered for use within bait in California to control yellowjackets,...

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Western drywood termites (Incisitermes minor, Figure 1) are an important pest of structural wood in California, causing millions of dollars in damage annually. These termites are very cryptic, hidden in their galleries within wood members (pieces of wood), and only emerge during swarming. As a result, wood damage usually goes unnoticed for a long time.

Control options are generally categorized as either whole-structure treatment (heat treatment and fumigation) or local treatments (insecticide injection into the wood, high-power microwaves, electrocution, and other techniques).

Despite...