The cabbage white butterfly, she is called still cabbage white butterfly, it is dangerous to plants from family of cruciferae family. Usually strikes cabbage, but also loves turnip, garden radish, swede. It is necessary to take measures in time, otherwise it is possible to lose all landings of cabbage.
The butterfly of the cabbage white butterfly lives about three weeks, manages to postpone for bottom side of cabbage leaf until 200 eggs. In about 10 days from them caterpillars which very quickly grow hatch. At first they eat cabbage leaves from below. Then, in process of growth, destroy all leaf and leave from it some veins.
How to struggle with the wrecker
The most elementary way to prevent mass emergence of caterpillars is to examine cabbage sheets, namely their bottom side. The found eggs and caterpillars are destroyed.
Use of chemical medicines, insecticides. Their great variety: fitoverm, kemifos, kinmix, etc. It is necessary to use according to the instruction.
Destroy the wrecker and its reproduction is prevented by bacterial and fungal infections and also insects parasites.
- This parasite lays the eggs directly in caterpillars. The developing larvae eat interiors of caterpillar, and those perish. Larvae of parasite leave caterpillar and spin the cocoons of yellow color similar in form to egg. Having pupated, they become adult insects parasites, and then take off from cocoons. It is necessary to keep these cocoons, to move them to places in which especially there is a lot of caterpillars.
- On dolls of the white butterfly often parasitizes pteromat, also causing death of caterpillars.
- In eggs of butterfly of the white butterfly develops yaytseed trikhogramma.
- As for diseases, the huge loss is caused to the white butterfly by "flyasheriya" - growth of caterpillars stops, their interiors turn into "porridge" of yellow color.
National ways of fight against the white butterfly
From national ways are used: tobacco dust, broths and infusions of camomile, wormwood, potato tops of vegetable, burdock. To process the struck plants from the sprayer. How to prepare:
- To collect wormwood, to wait so far will wither, to crush. To add a little water to kilogram of wormwood and to boil thoroughly 15 minutes. To dilute the cooled broth with water bucket. Double spraying with break in week is required.
- To take 1 kg of fresh potato tops of vegetable, to add water bucket, to allow to infuse 3.5 hours. After filtering to add 50 grams of soap.
- Camomiles pharmaceutical to take 1 kg, to fill in with warm water of 10 l, to allow to infuse 12 hours. Also to filter. To dilute with water twice, and then to add soap - 40 g on 10 l.
- Leaves of burdock to crush, fill with them 1/3 buckets, to add 10 l of water. It is necessary to insist long – three days.
- Well tobacco dust helps from cabbage white butterfly, it is applied dry directly on leaves.