Effect of flavonoids on feeding preference and development of the crucifer pest Mamestra configurata Walker.
Thirty-seven flavonoid compounds (9 flavones, 18 flavonols, 8 flavanones, and 2 flavanonols) were investigated for their effect on feeding choice with bertha armyworm (Mamestra configurata Walker; BAW). Feeding choice was dependent upon subtle differences in biochemical structure. Unsubstituted flavone and flavanone were the strongest feeding deterrents in the choice bioassay, while 7.4'-dihydroxyflavone and dihydroquercetin stimulated BAW to feed. The constitutive flavonoids of Brassica napus, isorhamnetin-3-sophoroside-7-glucoside and kaempferol-3,7-diglucoside, were effective deterrents when supplemented at concentrations higher than endogenous levels. In a no-choice bioassay, flavone reduced both larval weight as well as larval and pupal development time.
Onyilagha
Joseph C
JC
Agriculture and Agri-Food Canada, Saskatoon Research Centre, 107 Science Place, Saskatoon, SK S7N OX2.
Lazorko
Jennifer
J
Gruber
Margaret Y
MY
Soroka
Juliana J
JJ
Erlandson
Martin A
MA
D000818:Animals; D001835:Body Weight; D001937:Brassica / Q000737:chemistry*; D005247:Feeding Behavior; D005419:Flavonoids / Q000494:pharmacology*; D007814:Larva / Q000254:growth & development; D009036:Moths; D010571:Pest Control
D005419:Flavonoids