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The winder family of the butterflies The number of insects (Sparganothis pilleriana) is widespread throughout Europe and increased again in Germany towards the end of the 1990s. The pest occurs on more than 100 plants and is preferred in vineyards vines, The litterworm hibernates as a 1.5-millimeter-long, greenish snout with a black head in a web, preferably in bark crevices of the trunk. In the spring they go hiking tracked on the shoots, the bulging buds drill and hollow out. In the vicinity of the small boring point can be found as a characteristic dark Kotreste. After this expulsion are from the now gray to dirty green caterpillars the leaves infested and eroded and therefore also referred to as a leafworm. Also petioles, bills and young shoots are infested.

Springworm winder - caterpillar, moth, feeding damage

After reaching a size of about one centimeter, the caterpillars begin to spin the eaten leaves together. In their interior, they are up to four inches long and quickly leave the web (in case of disturbance by meandering movement) (hence springworm). After about 50 days the pupation takes place at the end of June. The main flight of the hatched butterfly extends to five weeks at night. After mating, the females lay on the top of the leaf egg packets (each with hundreds of eggs) like a roof tile on top of each other. After 10 to 20 days, the small caterpillars hatch, but do not eat, but rappel to hibernate to the trunk. The fight is done by insecticides or in a biological way during the main flight through the disrupter (Pheromone trap), or by the soil bacteria Bacillus thuringiensis, See also a listing of all pests and diseases below Vine enemies,

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