semiochemical


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semiochemical

[¦sem·ē·ə′kem·ə·kəl]
(physiology)
Any of a class of substances produced by organisms, especially insects, that participate in regulation of their behavior in such activities as aggregation of both sexes, sexual stimulation, and trail following.
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Response of the shothole borer of tea, Xyleborus fornicatus (Coleoptera: Scolytidae) to conspecifics and plant semiochemicals. Acta Agriculturae Scandinavica, Section B - Soil & Plant Science 58: 345-351.
Ethological methods are among these "greener" ways of pest control and it consist on designing baited traps with very small quantities of chemical compounds called semiochemicals. These compounds are intermediates in insect communication and affect specifically those considered as pest having a reduced environmental impact (Howse, Stevens, & Jones, 1998).
Under the condition that some specific chemical cues are used in the communication between insect pests and their natural enemies (Cox, 2004), the strategy of applying semiochemicals into the biological controls has been considered to attract parasitoids or predators into a crop or increase the amount of time they spend in a field.
The index values fall between +1 and -1, the positive index value denotes more bedbugs are attracted in the treated arena than the control, thus, indicate the attractant property of semiochemical component.
SPLAT, developed and patented by ISCA Technologies (Riverside, California USA), is a flowable, amorphous emulsion consisting of oils and waxes that controls semiochemical release.
Entomology professor Walter Leal and postdoctoral researcher Zain Syed, UC Davis Department of Entomology, found that nonanal (pronounced "no-nan-al") is the powerful semiochemical that triggers the mosquitoes' keen sense of smell, directing them toward a blood meal.
Carbon disulfide: a semiochemical mediating socially-induced diet choice in rats.
Phase I trials showed a significant reduction in bites from juvenile lemon sharks when a SharkDefense semiochemical repellent was combined with the Teeka Tan Sport SPF30 product.