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Genetically modified potatoes expressing Cry 3A protein do not affect aphidophagous coccinellids
Author(s) -
Kalushkov P.,
Nedvěd O.
Publication year - 2005
Publication title -
journal of applied entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 60
eISSN - 1439-0418
pISSN - 0931-2048
DOI - 10.1111/j.1439-0418.2005.00987.x
Subject(s) - biology , coccinella septempunctata , colorado potato beetle , myzus persicae , coccinellidae , leptinotarsa , bacillus thuringiensis , aphid , biological pest control , fipronil , horticulture , soybean aphid , botany , pest analysis , toxicology , agronomy , predator , predation , aphididae , pesticide , ecology , homoptera , genetics , bacteria
Field investigations showed that genetically modified Bacillus thuringiensis (Bt) potato plants (‘New Leaf’ expressing Cry 3Aa toxic protein) were not damaged by the Colorado potato beetle (CPB) Leptinotarsa decemlineata and contained diverse populations of the aphidophagous coccinellids Coccinella septempunctata , Coccinula quatuordecimpustulata , Hippodamia variegata and Propylea quatuordecimpunctata . The insecticides, alpha‐cypermethrin and fipronil, were used for control of CPB in the fields with the non‐transgenic standard potatoes ‘Santana’ and ‘Arinda’. Both insecticides caused significant decrease in the abundance of aphidophagous coccinellids. Laboratory experiments revealed that Bt potatoes expressing Cry 3Aa had no effect on the aphid Myzus persicae and that the aphids fed on Bt potatoes had no effect on the larval development and mortality of C. septempunctata .