Acylsugars are secondary metabolites exuded from type IV glandular trichomes that provide broad-spectrum insect suppression for Solanum pennellii Correll, a wild relative of cultivated tomato. Acylsugars produced by different S. pennellii accessions vary by sugar moieties (glucose or sucrose) and fatty acid side chains (lengths and branching patterns). Our objective was to determine which acyls...

Environ Entomol 17(3). 551-559 (1988) ABSTRACT The season-long population dynamics and within-plant distribution of the thrips Frankliniella occidentalis (Pergande) were examined. Thrips density was highly variable and peaked in midseason. Fluctuations in density in combination with changing age structure of the population suggest that migration plays an important role in the population dynamic...

Sugar spraying can cause induced plant resistance. In this study we investigated the effects of sugar spraying on the resistance to western flower thrips, WFT, Frankliniella occidentalis on tomato. We tested three different sugars: sucrose, fructose and glucose, at four concentrations: 0, 1, 10 and 100 ppm, to induce resistance of the cultivated tomato (var. Moneymaker). Bioassays conducted 2 w...

Plant defenses inducible by herbivorous arthropods can determine performance of subsequent feeding herbivores. We investigated how infestation of tomato (Solanum lycopersicum) plants with the Western flower thrips (Frankliniella occidentalis) alters host plant suitability and foraging decisions of their conspecifics. We explored the role of delayed-induced jasmonic acid (JA)-mediated plant defe...

Many pests cause serious economic losses in the carnation cultivation areas Turkey. Western flower thrips, Frankliniella occidentalis Perg. (Thysanoptera: Thripidae) is harmful on by feeding both leaves and flowers listed as a quarantine pest some exporting countries. Due to invasions of western thrips chemical control measures are traditionally used phytosanitary measure for flower cut carnatio...