Thrips


Make harm adult insects and larvae. A body of adult thrips is 1-1,5 mm, narrow, extended, flat. Thrips black or brown, with yellow, reddish paunch. Has two pairs of wings. At larvae the body is yellow. Females postpone light transparent eggs in leaf pulp. Development from egg to an adult insect occupy 20-30 days. In room conditions thrips can harm all year long, but especially during the spring-and-summer period.
Leaves are deformed and dry out.
Thrips at the big increase it is similar to the extended fly.
If to look with open years, thrips looks as a black point.

Leaves are damaged mainly. On the bottom party of leaf the thrips postpones numerous colonies, and on the top party of leaf there are light points. As a result the top part of leaf becomes grey-brown with silvery shine. At mass defeat all surface of leaf becomes whitish and decoloured, then leaves become brown and fall down. The basic harm the thrips make to the flowers which become covered by stains and are deformed.
Many kinds of these wreckers are known, for example, Parthenothrips dracaenae, Trips fuscipennis, Hercinothris femoralis, Liothrips vaneeckei and other kinds, however it isn't meaningful to establish a specific accessory of thrips as all of them have the general characteristic features and measures of struggle against them are identical.
Struggle measures: As occurrence preventive maintenance of thripses, is maintenance of enough high humidity of air round plants, regular survey of all plant. As are effective enough tapes-traps for flying insects against thrips. The plant should be sprayed, if necessary repeatedly with sprays for insects (phytoverm, actelic, inta-vir, carbofos, agravertin).





See also Wreckers