2024 Author: Gavin MacAdam | [email protected]. Last modified: 2023-12-16 13:38
The peach aphid is everywhere. Despite the fact that its primary host is peach and a number of its hybrids with almonds, in addition to fruit trees, it damages cotton, potatoes, cucumbers, tomatoes and tobacco. As for vegetables, crops grown in greenhouses are mainly affected by these parasites. If you do not start the fight against parasites in time, the harvest will definitely not please
Meet the pest
The founders, as well as parthenogenetic wingless females, reach 2.5 mm in size. As a rule, they are painted in a clear green color, but sometimes they can be pinkish. Quite high whiskers form their frontal grooves. Cylindrical tubules in parasites are slightly widened at the bases and slightly swollen towards the ends, and their tails are finger-shaped. The size of amphigonous females is about 2 mm, the tibia of their hind legs are slightly thickened, and the color varies from cherry to clear brown shades. Males are slightly smaller - 1, 9 mm in length, with black antennae, head and breast, and also with a clear green belly. Males are equipped with transverse black stripes merging on the third and fourth segments of the body into a continuous speck.
The eggs of the peach aphid are initially colored green or reddish, and after some time they begin to darken and turn black just before the release of the harmful larvae. Usually the pest hibernates in the egg stage in the very bases of the peach buds.
The rebirth of the founders is celebrated in March, sometimes it can be observed in April or February - it all depends on the temperature regime. First, the pests begin to feed on the kidneys, gradually moving to the blossoming leaves and flowers. The average duration of development of founders is from seventeen to twenty-eight days. In April, for ten to twenty days, they revive from twenty to sixty larvae. In total, two or three generations of wingless females can develop on a peach. Starting from the second generation, winged birds appear, the number of which noticeably increases in subsequent generations.
Aphids first colonize weeds, and a little later they move to herbaceous cultivated plants. And the secondary host plants of this pest are distinguished up to four hundred names. Males develop mainly on such plants, and subsequently fly over to females, which, after mating, lay overwintering eggs - from five to ten pieces. Aphids can reproduce rather unevenly throughout the year in the south, as well as on indoor plants, in greenhouses and in greenhouses.
The most optimal temperature for the development of harmful peach aphids will be about 24 degrees. In July, these parasites reach their maximum number, after which their number decreases rapidly, increasing again in September and October.
How to fight
Weeds must be constantly destroyed around greenhouses and greenhouses. Damaged and dry shoots should also be disposed of regularly. On fruit trees, fatty shoots and root shoots, which are intensively populated by aphids, are periodically cut out. As soon as for every ten centimeters of shoots there are 10 - 20 eggs of peach aphids, in early spring, before the buds bloom, spraying is carried out in the centers of reproduction of parasites. At the same time, the air temperature should not be lower than four degrees. Well, if the density of the peach population by enemies exceeds five colonies per hundred leaves, they switch to insecticide treatment.
In small gardens, it is possible to destroy pests mechanically - in places where uninvited guests congregate, twigs and trunks are wiped with a rag. You can also use such biological insecticides as infusions of bitterness, tobacco, tomato and henbane, but they will be effective only if the number of pests is not very large.
Hibernating eggs of the gluttonous peach aphid are often destroyed by spraying in early spring with mineral oil preparations or appropriate substitutes. 60% nitrophene paste in this case will also do a good job.
Recommended:
We Fight With Currant Glass
Currant (or currant) glass pan, in addition to all types of currants, often damages gooseberries, raspberries, hornbeams, hazel and euonymus. In most cases, the damage caused by it first leads to wilting of the leaves, and after a while the shoots completely die. At the stage of berry ripening, damaged shoots are especially noticeable. It was also noted that most often currant glassware affects currant varieties prone to cracking of the shoot bark
We Fight The Pea Moth
The pea moth with great pleasure relishes not only on peas, but also on lentils. And although only one single generation of this parasite develops in Russia per year, it can cause considerable damage. Only timely measures and all kinds of preventive measures will help to cope with such a scourge
We Fight With Grape Speck
Grape mottles live mainly in the south of the country and harm the harvest of juicy grapes. The main harm in spring is caused by gluttonous caterpillars, affecting delicate buds during their swelling, as well as at the stage of blooming. The result of the destructive activity of grape variegates is often significant yield losses. Moreover, both individual shoots and whole bushes can die
We Fight Fungus In The House And In The Barn
The fungus is the most dangerous enemy of wooden buildings. If suddenly a characteristic white fluff began to appear on the floorboards and on the logs of the walls, it means that the house was attacked by a fungus. And after some time, this fluff will begin to gradually change its color to yellowish, pinkish or even lilac. How to deal with this unpleasant phenomenon?
Sorrel Diseases And The Fight Against Them
Sorrel, like most other crops, is often affected by a huge number of all kinds of diseases. In order to protect this wild-growing grass known from prehistoric times from various misfortunes, it is important to know exactly how they manifest themselves - only in this case, the fight against ailments can give positive results. So, what is this sour green handsome man sick with?
