aqueous extract from leaves of sambcus ebulus l. were tested for antifeedant, growth regulation and ovicidal effects against the red floor beetle tribolium confusum duv. under laboratory condition (29?1?c, rh 60?5% and 12l:12d). the results indicated a significant deterrence for feeding, and comparatively significant larval, pupal and adult weight decrease in treated vs. controlled insects. sim...

A detailed analysis of the chemical constituents of a Caribbean specimen of Agelas sp. was carried out. Four brominated compounds (1-4) were isolated and one of them was identified as a new bromopyrrole metabolite, monobromoisophakellin (1). The structure of 1 was determined using spectroscopic methods. All compounds were tested for their antifeedant activity against the Caribbean reef fish Tha...

the cowpea seed beetle, callosobruchus maculatus (fab.) (coleoptera: chrysomelidae: bruchinae) is one of the major pests infesting stored pulses and is distributed worldwide. in this research, efficiency of plant extracts from eucalyptus globulus labill. and eucalyptus camaldulensis dehnh. were tested against the cowpea seed beetle for its antifeedant activity. several experiments were designed...

Bihar hairy caterpillar (Spilosoma obliqua) is a sporadic, polyphagous and voracious foliage feeder attacking several host species of different families. Its impact more pronounced in certain Cruciferae family, notably cabbage. The goal the current study was to identify methods for pest control that are efficient, economical, sustainable order combat infestation on research conducted measure ef...

This study investigated biological activity of chloroform extract of dry Lantana camara 'Mozelle' leaves against the eastern subterranean termite, Reticulitermes flavipes (Kollar), an important structural pest. Repellent activity was assessed using a paper-disc choice test and a sand arena choice test. Antifeedant and toxic properties were assessed using a no-choice paper test and a topical app...

Synthesis of bicyclic [1] and tricyclic [2] terpenoid lactones and the preliminary results of biological tests for their feeding deterrent activity [3] previously were presented. The tests, which were carried out on three storage pest insects: the grain weevil (Sitophilus granarius L.), the confused flour beetle (Tribolium confusum Duv.) and the khapra beetle (Trogoderma granarium Ev.), showed ...

The antifeedant effect of six cacalolides and six eremophilanolides was tested against the herbivorous insects Spodoptera littoralis, Leptinotarsa decemlineata, and Myzus persicae. The test compounds included several natural products isolated from Senecio madagascariensis (14-isovaleryloxy-1,2-dehydrocacalol methyl ether, 4), S. barba-johannis (13-hydroxy-14-oxocacalohastine, 5; 13-acetyloxy-14...