Gypsy Moths -- Additional Btk Info

The purpose of this page is to provide some balance to the view that Btk has no harmful effects 

"Conservationists question Btk spraying as a gypsy moth management strategy ... there may be one hundred different species of lepidoptera in northeastern Illinois whose larval stages coincide with that of the gypsy moth." Chicago Wilderness Magazine, 2002

"B.t. is only known to be toxic to the caterpillars of moths and butterflies ... there are many species of caterpillars affected by B.t." Michigan Gypsy Moth Education 

"In addition to staying indoors during the spraying, good hygiene is recommended. This includes: Washing hands throughout the day, especially after gardening, after going to the bathroom, or before preparing food; Washing all fruits and vegetables before eating or cooking; ... ; Cleaning or wiping indoor and outdoor equipment at daycare centers and preschool facilities, as well as covering sandboxes or sandpits." British Columbia Health Files 

"Rats who breathed air containing B.t.k. spores experienced respiratory depression." Journal of Pesticide Reform, 1994 

"The variety [of Bt] used on lawns and gardens, Btk, kills all caterpillars, including monarch butterfly and luna moth larvae. Caterpillars are essential in the diets of warblers and other birds, so Btk reduces their food supplies." 101 Ways to Help Birds, 2006 

"If more than 50 percent of their crown is defoliated, most hardwoods will refoliate or produce a second flush of foliage by midsummer. Healthy trees can usually withstand one or two consecutive defoliations of greater than 50 percent." Wikipedia