This summer many gardeners complain of domination of mean insects. What it is worth paying attention to protect fruit plants?
Name it – legion
Green plant louse on apple-tree and pear, the black plant louse on cherry and sweet cherry pollinated plant louse on draining give till 10-14 generations during the season. To the middle of July they can form numerous colonies on leaves and young escapes of the corresponding cultures. At mass reproduction the dense colonies of plant louse entirely cover bottom side of leaves. Edges of leaflets are bent down, leaves and escapes stop in growth.
Holding protective measures is recommended when settling more than 15% of leaves.
For processing of apple-tree and pear it is possible to use detsis, kinmix, tanrek, biotlin, fufanon. On stone cultures it is possible to use only fufanon and its analogs (carbophos, kemifos) and kinmix.
Pear deaf adder
In the summer this wrecker continues to feast on pear. He develops in Moscow area in three generations therefore to the middle of summer on escapes, on leaves, in bosoms of leaves, on scapes there are colonies of larvae of deaf adders which strongly eat, exhausting juice. Populated leaves and fruits cannot normally develop. In the course of activity of larva cover "grounds" with large number of sticky sugary allocations, and on this "syrup" the sooty mushrooms covering with continuous black raid leaves, branches and fruits settle. At strong damage the fruits lose presentation, their tastes worsen.
At detection more than 5% of populated leaves and escapes are necessary use of chemical medicines
For protection against deaf adder it is possible to use detsis or fufanon.
The enemy under cover
The larvae of yablonny and plum fir seed moths which were comfortably arranged in the "edible lodges" – fruits, usually continue to harm harvest until the end of summer.
Caterpillars of yablonny fir seed moth leave the fallen-down fruits within a day, plum – within two days. On this fact the main way of fight against them keeps: regular collecting and destruction of fruit drop. This reception promotes decrease in quantity of the damaged fruits and also the number of wreckers in the second generation and next year.
Scab of apple-tree and pear
If there is a lot of spots on leaves and ovaries of apple-tree and pear during growth of fruits, and weather costs crude and cool, then continue fight against this disease. Especially it is important on grades of late term of maturing.
If to the middle of July (end of development of primary scab) the quantity of the fruits and leaves affected with scab exceeds 3–5%, further processings are necessary. If it is less – it is possible to refuse them.
Use oxychloride of copper or abiga-peak.