Consultation is given how to get rid of the wrecker – a crimson gallitsa.
If among summer raspberry unexpectedly dried up, most likely, it is struck with raspberry a stem gallitsa – small (1,6-2,2 mm in length) to an insects similar to black komarika with a brown back and with two transparent wings. This widespread wrecker causes a big damage to raspberry practically in all places of its growth. On young escapes of remontantny raspberry there are swellings. They are formed small (to 5 mm of length) by orange-yellow larvae. In the spring of a larva prevrashhayutsya in adult insects who take off from shelter during mass flowering of raspberry.
Life expectancy of adult insects of 2-5 days. During this time the female is capable to postpone about 50-100 eggs. Larvae, depending on term of a departure of females and weather conditions, otrozhdayutsya from eggs from the middle of June till the end of August. Pronikayut in escapes more often through places of defeats or a gentle thin skin of thin young growth. After penetration of larvae opukholeyovidny swellings appear at air temperature + 15-16°C in 17-20 days, at temperature + 19-24°C – in 7-10 days. As a rule, Gauls are appreciable in June-July, but are especially well visible after a leaf fall. Usually on one stalk vstrechayutsya 1-2 Gauls in length of 8-40 mm, width of 6-17 mm, are in each of which from 2 to 40 larvae.
As a result of a food of larvae under a bark of a stalk it is damaged sistema, providing a sokodvizheniye, and the plant dries up. Stepen defeats of escapes depends on quantity of larvae and velichiny the Gaul: the death of escape is inevitable, if the tumor occupies a bolyyoshy part of a bark round a stalk. Swellings become covered by a fissuring, rough bark into which cracks pathogenic mushrooms, bacteria and wreckers, sposobyostvuyushchy to rotting get.
How to win a malinny stem gallitsa
In the early spring or late autumn when Gauls on stalks are well visible, it is necessary to cut off all struck stalks and it is obligatory to burn. If sistematicheski to destroy stebli raspberries with Gauls, in 2 years it is possible to get rid of these vreyoditel completely.
It is not recommended opryskivat raspberry plants protiv these wreckers by any insecticides (chemical means for fight against harmful insects). The mayolinny stem gallitsa has many estestyovenny enemies, chuvstvitelyyony to poisons. Larvae of the equestrian torimusa, for example, unichtozhayut more than 50 % of larvae of a stebyolevy gallitsa, eating in Gauls. Quite often after especially akyotivny approach vreditelya defeat of raspberry galliyotsy is sharply reduced by the next year, as though itself the soyoby. This results from the fact that a large number of a forage promotes the strengthened razyomnozheniye torimusa. Adult individuals torimusa as well as many other useful insects-entomofagi, eat flower nectar.
3. Existence on personal plots of blossoming plants melliferous herbs: mustard, fennel, to a fatseliya and others promotes reproduction of useful insects which eat a gallitsa.
4. It is recommended also vysazhivat the grades of raspberry otnosiyotelno steady to raspberry to a stem gallitsa, imeyuyoshchy a thick thin skin through which it is more difficult to wrecker to get under a bark: Nyuburg, to Armour, Malboro.
5. Follows once again obsledovat raspberry escapes. And if you find except thickenings also dark stains with an otstayuyoshchy bark – it means, malina is struck with raspberry a pobegovy gallitsa. For protection against it nedostatochyono to destroy patients pobegi. It is necessary twice oprysnut the soil round bushes rastvoyory karbofosa (75 g on 10 l of water.) The first processing to carry out in the May, the second – posle harvesting.
(On materials of printing editions).