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EFFECT OF FEEDING STIMULANT ON THE FEEDING BEHAVIOR AND MORTALITY OF HELICOVERPA ARMIGERA ON DIETS WITH BACILLUS THURINGIENSIS *
Author(s) -
Jihong ZHANG,
Chenzhu WANG,
Junde QIN
Publication year - 2000
Publication title -
insect science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 45
eISSN - 1744-7917
pISSN - 1672-9609
DOI - 10.1111/j.1744-7917.2000.tb00354.x
Subject(s) - helicoverpa armigera , bacillus thuringiensis , biology , larva , toxicology , stimulant , zoology , botany , bacteria , genetics , pharmacology
Bacillus thuringiensis (Bt) was noticed to be highly deterrent to the feeding of Helicoverpa armigera larva when incorporated into diets, even at the non‐lethal dosage. As the dosage of Bt increased, the deterrence showed a tendency of elevation. Feeding stimulant, FS‐1 could attract larvae for feeding, and increase larval feeding time and consumption. Addition of 1% (vlv) FS1 could alleviate the deterrent effect of Bt, especialy in low concentration. In no‐choice test, it was observed that while 1% (v/v) FS1 was added, LC 50 , of Bt underwent a 41% decrease, but in the choice test, the mortality of larvae was not significantly enhanced.