Pests of plums, cherries and sweet cherries

liva worted aphid. Its larvae are born from overwintered eggs during bud formation, grow rapidly, becoming wingless light-green females, covered with a white wax-like coating, similar to fluff. The number of aphids reaches a maximum in the second half of June. Their colonies inhabit the tips of the shoots and the underside of the leaves, the edges of which slightly bend. The leaves near the veins become discolored. On sugary isolates of aphids, saprophytic black fungi develop.

Cherry aphid inhabits cherry and cherry. Its larvae are brown, adults are black, shiny. The larvae concentrate on the tips of the young growth and colonize the underside of the leaves, which deform and dry out, and the shoots lag behind in growth. Control measures. See Apple aphid.

Cherry mucous sawfly damages cherry, cherry, less often plum, pear and black chokeberry. The larvae hibernate in a cocoon, under the crown of a tree in the soil at a depth of about 10 cm. They pupate in June. Adult sawflies are small( 5 mm), black with membranous wings appear in mid-July. The females are sawed by the ovipositor on the underside of the leaf and laid into the egg tissue. Larvae are greenish-yellow, covered with black mucus, similar to small( about 1 cm) leeches, feed on the flesh of the leaves, leaving only veins and a transparent film of the lower skin.

Control measures. Loosening and digging of the truncated circles( at a distance of 1 m from the stem) in autumn and spring. After harvesting the cherry, it is recommended to spray the trees with tobacco, makhorka, wormwood or bitter solution or spark a double effect( 1 tablet per 10 liters of water) or carbophos( 60 g per 10 liters of water).

Plum Sawflies ( yellow and black) hibernate in the phase of larvae in the soil, pupate in the spring. Adult insects appear 3-5 days before flowering plum. The larvae feed on the pulp of the plum ovary and the uncured bone, eating out the entire central part of the fetus.

Control measures. Autumn digging of the soils of the trunk lobes for the destruction of the larvae hibernating there. During the budding of the plum( before flowering), daily shake the pest from the trees to the litter, collect and destroy. Do it better in cloudy weather.

Chemical treatment. See Cherry mucous sawfly.

Plum pedicle harms only in years with warm dry summer, the caterpillar is introduced into the fetus, laying in the flesh the course to the peduncle,

then gnaws the stroke in the bone. From the wounds gum flows in the form of clear, light or amber drops. Growth of fruits stops, they acquire a violet color and fall off.

Control measures. Every day to collect the carrion, at the end of July - beginning of August, put on the hunting belts, after harvesting, remove them from the trees and burn them.

After flowering, treat the trees with the drug spark double effect( 1 tablet - 10 grams per 10 liters of water).

Acacia spoon-board occurs on the sink, it also develops on currants and gooseberries. The reddish-brown larvae hibernate on the crust of thick branches. In April, they crawl on one-and two-year shoots and begin to suck the juice from the bark. In late April and the first half of May, the larvae become adults. After 2-3 weeks the females begin laying eggs, of which after another 3 weeks yellowish larvae form which creep along the crown, sticking to the leaves and petioles mainly from the underside, and feed on the juice of the plants.

Control measures. Timely top dressing with organic and mineral fertilizers, processing before flowering with carbophos( 60 g. Per 10 l of water).