As soon as the buds swell, apple and pear flower beetles creep to them from the near-trunk soil - their wintering places, and also crawl out of cracks on the trunks. Climbing the crowns of apple trees and pears, pests make punctures in the buds that have not yet opened, after which their food runs out - transparent juice, also called "crying kidneys."
When the buds mature, the female flower-eating pests lay their eggs inside. Therefore, the buds turn brown and stick together without blooming. Sometimes you can see the crown of the tree, which is almost entirely hung with unbroken brown buds.
To stop this problem at the root, and created hunting belts, mounted on tree trunks. After all, the trunk is a kind of bridge between the soil - the place of wintering of pests and the crown - the place of their feeding.
Since some insects not only crawl, but also fly, their belts are not completely rid of them. But against the most malicious pests, such as the apple codling moth, they are very effective: most of the caterpillar caterpillars will forever remain in traps, which will never become butterflies.
How is the hunting belt
In general, it is a strip of various woven and non-woven materials, which can be rags, burlap, straw, dense corrugated paper, foam and glass wool, matting, PE film. The material is wrapped around the trunk of the trunk and secured with a rope or knitting wire.
The design can be designed either to collect insects, or to create for them an insurmountable barrier when moving from the ground to the crown.
The easiest way to buy finished products sold in stores for gardeners, but they can be done with your own hands.
We can offer the following classification of homemade hunting belts.
- Like a funnel.
- Type "skirt".
- Bilateral type "funnel".
- With a soft or fibrous layer pressed to the bark.
- Insecticide-impregnated dry belts
Dry hunting belt
The mechanism of its action is to create obstacles to pests when moving them along the trunk. Such belts must be made either so smooth that the paws of the insect do not adhere to its surface and cannot stay on it, or must be shaped so that the insect cannot find its way up.
The most effective option is a funnel-shaped belt. They make it from cardboard, or take another dense and flexible material, which is wrapped around the trunk so that a funnel is formed, facing the bell down. Around the top of the funnel is tied a rope or screwed wire, so that there is no gap for the creep of insects. Since they can use cracks in the cortex for this, they should be covered with clay (or plasticine).
The funnel can be shaped like a skirt. For example, if you make it from a rubber plate by gluing it with wood glue, then you can wrap up the lower edges. Oil or glue can be poured into the formed annular cavity, so that, having got into it, the insects are no longer selected. Such a belt will serve for a long time.
Another form of a dry belt is a double-sided funnel, which can also be made with cardboard on its own. Wrapping it around the trunk so that two oppositely directed funnels are formed, then the product is tied twice in the middle. Thus, the belt is divided into three parts. Insects crawling from above and below linger inside the corresponding funnels and die in them.
An interesting option is a belt made of foam rubber or glass wool. Tightly wrapped around the trunk, these materials completely cover all insect passages in the form of cracks in the cortex, and it is extremely difficult to get through the glass wool fibers and especially through the foam rubber. If foam rubber or glass wool is wrapped with a smooth film (for example, stretch film), then the path along the outer surface for insects will be blocked.
The effectiveness of using such obstacles is comparable to insect collection belts.
Insecticide Impregnation Model
The design of such belts is similar to dry ones. They are impregnated with insecticides that are approved for use and designed to destroy those insects that usually creep through the barrier at a particular time of the year (bugs or caterpillars).
Sticky trap belt
In this product, the outer surface is coated with an adhesive substance, which often acts as an adhesive against rats and mice, which does not dry for a long time. The sticky belt is resistant to moisture and retains its ability to retain insects for a long time.
What, besides the finished glue against rodents, can you cover the product? Here are two glue recipes for it.
In the first of them, the main component of the glue is pine resin resin, along with rosin and petroleum jelly. They should be taken in a ratio of 10: 1.2: 1.5, mixed and cooked until an adhesive mass is formed.
In the second embodiment, the main components of the glue are tar and burdock oil in a ratio of 2: 1. First, the tar is brought to a boil, then mixed with oil and boiled for five hours on low heat.
If you make a sticky hunting belt from green material, then it will not attract beneficial insects, and they will not get into it. Place the structure at a height of about 70 - 80 cm from the ground.
In places where the belts are applied, they clean the dead bark without fail, and cover the cracks with clay. This operation can be avoided if the adhesive coated material is wrapped around a layer of foam or glass wool. Typically, the PE film or stretch film covering them is lubricated with glue in a spiral fashion. Sticky belts are applied before the buds swell to block the path of the tree crown to the apple bee-eater.
If you set belt traps on fruit trees in a timely and technically correct manner, then this will destroy many caterpillars of codling moths and other pests. Being used in combination with other protective measures, these funds will save the crowns of fruit trees from pests, which will dramatically increase their productivity. They must be removed in the fall, shortly before the onset of frost. In addition, they should be replaced in cases where a significant amount of pests accumulates on the surface of the protective layer.