Attractants


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Related to Attractants: insect attractant

Attractants

 

natural or synthetic substances that attract animals. Insects are especially sensitive to attractants. Three basic types of attractants are known: sexual attractants, which attract the way that members of the opposite sex do; food attractants, which attract the way food does; and attractants which attract like a substratum for egg-laying. The sexual attractants are the best known. It has been established that substances extracted from the females of some insect species in a concentration of 1 x 10-14 mg per liter of air attract males of the same species, and sometimes those of other genetically close species. Cases have been observed in which butterflies are attracted from a distance of 3 to 9 km. The presence of attractants has been established in more than 300 insect species. For some of them the attractants have been extracted and their structures have been studied—for example, the attractant of the gypsy moth gyp-tol (formula 1).

In order to attract the gypsy moth, the synthetic product gyplur (formula 2) can also be used. It is a homologue of gyptol and trimedlur (tributyl ester 4- [or 5-] chlor-2- methyl-cyclohexane carbonic acid [formula 3]) from the eastern fruitfly.

Attractants are of practical use in fighting plant pests and animal parasites. Using the attractants as bait, one can exterminate the insects with a minimal waste of insecticides; it is also possible to disorient the males and thus reduce the numerical size of the following generations. Attractants are also used for determining which harmful insects have infected a crop.

REFERENCES

Korotkova, O. A. “Privlekaiushchie veshchestva (atraktanty).” Zhurnal Vsesoiuznogo khimicheskogo obshchestva im. D. I. Mendeleeva, 1964, vol. 9, no.5.
Lebedeva, K. V. “Privlekaiushchie veshchestva (atraktanty).” Zhurnal Vsesoiuznogo khimicheskogo obshchestva im. D. I. Mendeleeva, 1968, vol. 13, no.3.
Jacobson, M. Insect Sex Attractants. New York and others, 1965.
Advances in Pest Control Research, vol. 3. Edited by R. L. Metcalf. New York-London, 1960.

N. N. MEL ’NIKOV

References in periodicals archive ?
Carnivorous plants have been suggested to lure prey by the action of a number of purported attractants (e.g., color, nectar, odor, absorption and/or reflectance of ultraviolet light; Miles et al., 1975; Joel et al., 1985; Joel, 1986; Juniper et al., 1989; Jaffe et al., 1995).
Partial-purification and characterization of postlarval lobster (Homarus Americanus) feeding attractants from herring (Clupea Harengus) tissue.
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Make sure these positions provide a clear view of the aircraft operating area, including approach and departure zones, and potential wildlife attractants. To ensure further standardization, observe wildlife for 5-minute intervals at each monitoring point, two to four times throughout each day (i.e., dawn, mid-day and dusk), and document key factors.
The same can be said when you flood an area with food plots, attractants and/or self-constructed watering holes--especially if you place them too close to known buck bedding locations.
As part of an ongoing assessment of orchid bee diversity within the park, we did a study comparing the species composition of orchid bees attracted to 4 commonly used chemical attractants.
has acquired Buck Bomb Inc., a leading supplier of hunting attractants.
With Tink's new Hot Shot[TM] ($12.99) line of spray lure attractants you will be able to draw game in from longer distances than ever before.
"Specifically, our group evaluated responses ofbrown marmorated stink bugs using different visual stimuli, compared the effectiveness of commercially available traps from Asia with a black pyramid prototype trap, compared relative attraction to different doses of odor attractants, and conducted a field cage experiment designed to establish how often the brown marmorated stink bugs reproduce."
Washington, Mar 8 ( ANI ): Sperm have only one objective: to find the egg and the egg supports sperm in their hunt by emitting attractants that induce changes in the calcium level inside sperm, researchers say.