2024 Author: Gavin MacAdam | [email protected]. Last modified: 2023-12-16 13:38
The red-winged hawthorn pipe-worm poses a danger not only for hawthorns - they often feast on pears with apple trees, and sweet cherries with cherries. And a little less often it can damage plums, mountain ash and blackthorn. These malicious pests are dangerous in that during their feeding period they introduce into the fruit tissues the spores of pathogens of destructive fruit rot. Adults are especially harmful, so it is extremely important to get rid of them in time
Meet the pest
The red-winged hawthorn tube-worm is a bug that grows in length from 2.5 to 5 mm. The lower parts of the bodies of the pests, as well as their pronotum and heads, are bronze in color with a pronounced metallic sheen. Elytra, legs, and rostrum are red, antennae are attached near the center of rostrum, and ocelli are convex, round and small.
Oval white eggs of red-winged hawthorn tube-wrenches reach 0.8 mm in size. Little white, slightly concave larvae, growing up to 5 mm, are endowed with bodies tapering towards the posterior tips and thickened in the thoracic parts. And the size of the yellowish-whitish pupae is about 4 mm.
Overwintering of larvae and immature beetles takes place in the soil. And their mass release starts either before flowering, or simultaneously with the flowering of apple trees. Initially, the food of the voracious bugs is the leaves and buds, and a little later they get to the ovaries, damaging them with deep wounds - "pricks".
Six to nine days after the apple trees have bloomed, the females begin to lay eggs in the ovary - in each fruit there can be either one egg or several eggs at once. The duration of the laying process usually takes from two weeks to a month, and the total fertility of females is about sixty to eighty eggs. Approximately five to six days after the eggs have been laid, the harmful larvae are reborn. Fruits damaged by red-winged hawthorn tubewerts keep on trees for quite a long time and do not rot, and after some time they turn brown and mummify. Accordingly, the food for the larvae is first the fresh pulp, and then the mummified tissue. Often in one fruit, you can find two or four larvae at once, however, this happens only in pome breeds. As for stone fruit, only one larva is introduced into each fruit.
Towards the end of August or at the beginning of September, the larvae leave the fruits they love and go to the soil to winter in earthen cradles. And their pupation will occur only in the fall of next year, since the generation of these pests is two years old. Red-winged hawthorn tube-worms remain in the pupal stage from twelve to fourteen days, and the formed bugs continue to remain in their cradles until spring.
How to fight
All mummified fruits, as soon as they are found, should be collected and promptly destroyed. They do the same with the carrion. Proper autumn cultivation and early spring loosening in near-trunk circles are also an excellent solution.
If there are not very many beetles, then you can fight them by shaking off. This procedure is carried out before the trees bloom, that is, in early spring. With the help of poles wrapped in burlap, the bugs are gently shaken off onto the spread dense material, after which they are collected and quickly destroyed. As a rule, shaking off is carried out in the morning at three or four visits - at this time, insects are rather low in activity. And by visual observation, you can determine more accurately how many shaking techniques are required in a particular case.
Also, in early spring, trapping belts made of straw soaked with insecticides are laid out near the tree boles. After flowering fruit trees, all traps are removed. The well-known method of glue rings will be no less effective.
In the event that more than seven to eight bugs begin to fall on one fruit tree, insecticide treatments are started. Such treatments are carried out approximately 4 to 6 days after all the apple trees have faded. And before flowering, you can use "Metaphos" and "Metation".
Recommended:
Hawthorn Blood Red
Blood-red hawthorn (lat.Crataegus sanguinea) - a representative of the genus Hawthorn of the Pink family. Other names are blood-red hawthorn or Siberian hawthorn. In nature, it grows in Eastern Siberia, Western Siberia, Transbaikalia, the European part of Russia, Kazakhstan, Mongolia and China.
Vicious Currant Kidney Mite
The currant kidney mite develops exclusively inside the currant buds (mainly black, red and white currants are damaged by this pest much less often), provoking their rapid growth and subsequent deformation. Often in one kidney attacked by them, from three to eight thousand adult pests, as well as their larvae, accumulate. Deformed buds almost never bloom and dry out rather quickly, which in turn contributes to a sharp decrease in the yield
Vicious Greenhouse Thrips
Greenhouse thrips can be found wherever various crops are grown indoors. It damages mainly cucumbers, eggplants, peppers with tomatoes, as well as a number of ornamental crops in flower greenhouses. Harm is caused not only by the larvae of this pest, but also by adult insects. They spread at an incredible speed and hide very skillfully, so getting rid of greenhouse thrips is a rather troublesome and very difficult task. However, this is an extremely important matter, because the gluttonous n
Vicious Alfalfa Leaf Weevil
The alfalfa leaf weevil is almost ubiquitous and damages both wild and cultivated alfalfa. Beetles gnaw holes in juicy stalks with appetite and eat alfalfa leaves from the edges. As soon as the formation of lateral branches begins on alfalfa, they will begin to feed on their tops, eating out numerous holes in the stipules. In general, the harm from bugs is very insignificant - the main damage to alfalfa is caused by vicious larvae, at first feeding on tiny young buds. By request
Vicious Strawberry Blackspot Sawfly
Strawberry black-spotted sawfly is found in all regions of our country and damages not only strawberries, but also rose with rose hips, strawberries and, a little less often, raspberries. The larvae of these parasites are considered especially harmful: young larvae actively skeletonize juicy leaves from the lower sides, middle-aged individuals gnaw numerous holes in the leaves, and the larvae of the latter age, in addition to everything, gnaw strawberry leaves along the edges. Young
