Diamondback moth: description and methods of struggle

Kale is one of the most popular vegetable crops. To grow it on a country station is not too difficult. Plants need mostly only time to water and fertilize. As for pests, until recently, they were not so much. Annoyed cottagers is that only slugs and butterflies are cabbage butterflies. However, not so long ago this vegetable crops has another very serious enemy.

In recent years, sometimes it happens that vacationers go to the city, leaving the healthy vegetable cabbage, and came in a few days, you find nothing but stems and veins of leaves. Fabric, flowers, ovaries, of cabbages – all of it is eaten up clean. Deals an enormous damage to plants is a new kind of pest-Diamondback moth. Focus of its distribution are assumed to be the warm Mediterranean countries.

A butterfly

To Detect this pest on the plants quite difficult. The fact that in the adult state, and in the larval stage of the cabbage moth is very small. It looks very similar to a regular home moth. The adult butterflies of both fore and hind wings narrow, have a complex pattern in white and grey. The body of the insect is dark brown with yellow stripes, and antennae rather long. Rear wings on the edge have a fringe. In the folded state their ends slightly raised. The body length of the adult cabbage moth is 5-7 mm, and a wingspan of about 15 mm.

Pest Larva

Life cycle adults of the cabbage moth is very small-only about 2 weeks. The cruciferous plants butterflies actually do no harm is applied. But, of course, the fight against Diamondback moth should be aimed at including and such adults. Because almost all free time devote to butterfly eggs, of which then go voracious larvae. Latest at an initial stage of development is absolutely colorless and have tiny size (about 4-5 mm). That is why most gardeners don't notice them, with the result that the plant suffers from great damage in a short time. On one Bush (mostly on the underside of the leaves), a butterfly can lay a huge number having an elongated shape, yellowish eggs.

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Hatching the caterpillars gnaw the cabbage tissue in numerous passages. After a while they come out from the upper side of the sheet. About the fourth day the caterpillar enters its next stage of development. The sizes are slightly increased, and body color changes to bright green.

Lasts larval stage from cabbage moths for about a month. Then the caterpillar weaves a thick web and arranges it yellowish-green translucent cocoon. Out of it after about a week and a half goes adult butterfly.

Behaviors

The butterflies of this species are very poorly. Above ground Diamondback moth can rise no more than 2 meters. But as this insect is not too large, it is easily transported by wind. That's the way the pest usually migrate over large distances.

The Caterpillar of the cabbage moth from larvae of other garden insects, among other things, can be distinguished from the behavior. If you touch her, for example, the wand starts to behave very actively – energetically crawling away, squirming at the same time, or even quickly down the leaf on a silk thread.

Damage Diamondback moth can not only cabbage, or cauliflower, and other cruciferous plants. Very often it affects, for example, lettuce, turnip, radish, etc.

In the winter moth is usually spent in the adult stage of a butterfly. Too severe cold is an insect, fortunately, can not stand. So after frosty winters in the cabbage beds of the pest is possible to meet quite rarely (unless, of course, it will bring South winds from warmer regions).

Garden Diamondback moth: measures

To Destroy this voracious insect is very difficult. Most of the tools used by the cottagers against other pests of crucifers, in this case does not help. Absolutely useless, for example, to apply against moths vinegar, tobacco dust, ashes or infusion of tobacco. All of these means it is completely sustainable. Doesn't help against it, and most chemicals.

Judging by the reviews of vacationers, more-less good results in combating this pest are given only such means as "Senpai" of the “Colorado Forte” and “Bio kill”.

However, after a few years, and these drugs may be powerless in the face of Diamondback moth. The fact that this pest like cockroaches room, very quickly adapts to any insecticides. In any case, to apply the above-mentioned funds carefully. After the tissue the cabbage is very delicate and can easily burn. Also it is not recommended to use these drugs for a couple of weeks before harvest. Otherwise, cabbage will simply be poisoned.

What other insecticides can be applied

If the mole revealedresistance to the above-described means is to try to destroy her along with such drugs:

• “Malathion”.
• “Talcot”.
• Kremneftoristyj Sodium.
• “Norell”.

Without exception, All insecticides have a detrimental effect only on butterflies and larvae of cabbage moths. Embryos in eggs and pupae in the cocoons remain alive. So after a couple weeks the plants should be treated with the same agent a second time. By this time the larvae and butterflies will come out of their "shelters".

National action

Different kind of chemicals are often used for the destruction of such pest as Diamondback moth. Measures of the people's struggle against it can also be used. It is possible to apply chemicals, and such slaughter as, for example, the same “Colorado”, the majority of vacationers don't especially like.

Some gardeners suggest to use against this pest in the flour mixture with baking soda (equal amounts). The powder you just sprinkle the cabbage leaves and throw it on the ground near the stems. Once in the body of the insect with the plant tissues, flour stick together into a ball and forms a tube into his digestive system. Concludes the case the detrimental effect of soda.

There are other ways of destroying such dangerous pest, like the Diamondback moth. Measures against folk remedies can also be, for example, spillage of plant leaves chopped Bay leaf. It is believed to help from the moth, maybe a regular dog flea shampoo. It needs to be diluted with water (2 tablespoons in a bucket) and spray the cabbage resulting solution.

Bacterial

What else can be done against pest such as cabbage moth measures? In some cases, against the voracious caterpillars of this variety help and bacterial means. Their advantage is that they have no harmful effects on the plants themselves and on the human body. Being deposited on the leaves, they are absorbed by the tissues. Further, the drugs enter the body as larvae and begin their destructive work by causing paralysis and death.

Most Often to combat Diamondback moth using such bacterial sredstva:

• «Dendrobacillin».
• «Gamelin».
• «Dipel».
• «Bactisubtil».

Use this group of drugs is desirable at the peak of activity of the caterpillars-in the evening. The best air temperature outside is 16 degrees.

How to get rid of cabbage moth preventive measures

Winters this insect usually in the tops of the cabbage. So in the fall to prevent all the leaves and stems of such plants should be carefully rake and burn. You can also put them in the compost pile. It concerns not only the leaves of cabbage, Brussels sprouts or cauliflower, and cress, radish, turnip. You also need to remove from the site any dead tops of different kinds of weeds of the family Cruciferae.