One of the most destructive pests of black currant currant is sesiidae. The adult flies during flowering currant, lays eggs about 50-60 kidney damage in the cortex. Two weeks later, the eggs are displayed caterpillars are pale pink with a dark head.
Harm currant sesiidae
Caterpillar introduced into the stem and eating it for two years, eats the core branches. Then exits the escape to the ground and turns into a wintering pupa. In the spring from its chrysalis the butterfly again displayed.
If time does not notice affected plants, you can completely lose the bush. When cut shoots damaged evident that will drive the core and filled with products brownish larvae activity. It is necessary to cut the affected shoots to the core and burn.
Tip! If the pest is settled in more than half of the branches, the bush will have to completely destroy.
Control and prevention methods
- To combat the pest garden centers and shops offer a wide range of chemicals (Malathion, Fufanon et al.) And biological (Fitoverm, Lepidocide et al.).
Important! Strictly observe the recommended doses, the rules of breeding and introduction. In any case can not exceed the concentration and number of treatments. When processings need to handle currant, raspberry and gooseberry landing. Be sure to handle the tree trunks before they hatched from eggs to caterpillars to penetrate sprigs.
- As a precaution you need to dig and loosen the soil under the bushes to make ash.
- Repellent pest dusting brush and the ground beneath them tobacco dust, mustard powder, tobacco.
- The pest does not like the neighborhood with marigolds, garlic, calendula. Put these plants near a currant and a butterfly will fly around her face, and your eyes will delight flowers.
- Butterfly sesiidae guided by smell, and we know what flavor are berries, leaves and even stems of black currant. To deceive it is not bad in the spring every 3-5 days, spray the plant extract of garlic (300 grams per 3 liters of water insist 10-12 hours) or wormwood (500 g of fresh grass or 100 dry, pour 3 liters of boiling water, leave for 5-6 hours). Strong sharp strange odor, insects will introduce misleading.
Accurately determine the processing time of the pest can be on-the-fly adults sesiidae. Spring after bud arrange small jars with currant jam diluted with water. Females are attracted by the aroma and sweet taste, will fall into the bait. As soon as you see this sign caught insects for processing of berry preparations.
Attention! All processing plant protection chemicals must be stopped at least 30-45 days before ripening berries.