Often people decorate their plots with coniferous trees and shrubs . They perform a decorative function, therefore they must look "one hundred percent". However, it sometimes happens that the pines are covered with brown granules, caterpillars creep along them, the needles fall, which makes the trees look sloppy. Let's find out how to save pines from caterpillars and restore their former attractiveness.
Means against caterpillars on pines
Before you start looking for something to treat the pine from the caterpillars, you need to figure out which pest has settled in your garden. There are several varieties of caterpillars that affect certain parts of the tree.
The most important hvoygryzuschy pest - a red sawfly. Its dirty green and black larvae with flat heads live in groups and, at the slightest danger, lift the front part of the body. These caterpillars attack the needles, but only the old one, because the crown becomes lace, with the ends of shoots waxed.
How to deal with green (black) caterpillars on the pine: you need to regularly dig in the trunks, destroy the nests and the larvae themselves, which is suitable for decoctions and infusions of insecticidal plants, as well as ready-made insecticides "Actellik", "Confidor" and others. How to get rid of black caterpillars on a pine: young larvae can be tried to destroy with synthetic preparation "Arrivo".
Another dangerous hvoegryzuschy pest - a pine silkworm. It causes the death of pine plantations in a short time. Be vigilant if there is a pine forest near your site, it is from there that dangerous caterpillars can come. The method of fighting them is only one - the use of insecticides.
Often pine eat caterpillars of a pine moth - a butterfly, laying eggs on old needles in even rows. At the end of June, caterpillars appear from eggs, which eat not only pine needles, but also kidneys. Pine trees with their large number are threatened with complete drying out.
Since the pests pupate in the soil, as a prophylactic measure, it is necessary to dig in the late fall, and young larvae are destroyed by spraying with insecticidal and biological preparations in the spring.
If you see that young pine shoots and buds are gnawed on your pine trees, most likely they had pine scoops. Even in a short period of time in the stage of the caterpillar, they manage to inflict considerable damage on the trees, up to their complete desiccation. In addition, other table pests are infested in the damaged scoop plantations, speeding up the death of plants.
How to deal with caterpillars of a pine scoop on a pine: you can do it with baits with fermentation additives. Such baits operate throughout the summer. Pupae can be destroyed by digging and loosening the stump. It is also necessary to treat trees with insecticidal and biological agents during the period of bud budding.
In the height of summer (June, July) pine trees are affected by a cone-shaped fire. Her caterpillars gnaw cones, eating their seeds. In this case, brown feces and resin deposits appear on the cone surface. This pest is the most dangerous for the seeds of coniferous species. It is necessary to fight with it during the release of caterpillars with the help of systemic insecticides.
If you see that the kidneys are gnawed on the pine tree, and the shoots are bent and that the panicles of needles with resin appear at their ends, then the tree is affected by the pine shoot. Fighting its caterpillars is necessary, removing from the tree and burning damaged buds and shoots, and if the lesion is massive, at the end of April the trees need to be sprayed with insecticides.