To grow up good harvest of potatoes, it is necessary to be able to expect his diseases and in time to help him. Some grades of potatoes are more resistant to diseases, for example "Chérie" and "Charlotte". Others - more sensitive to diseases, such as "Amandine" and "Belle de Fontenay".
Colorado beetle. Yellow orange insect with black strips on convex oval back. Devours potatoes foliage. The bug lays eggs of orange color on reverse side of foliage. Larvae reddish in black speck same gluttonous as well as adult bug.
Ways of fight: Regularly collect and destroy eggs, larvae and adult bugs. Spraying by infusion of medical camomile helps at the first attacks of insects. Plant sideways from potatoes eggplants and coriander. It plants - traps for Colorado beetle. The wrecker will prefer them to potatoes.
False mealy dew, peronosporoz. On outer end of leaf there are yellow spots which become then brown. The white raid on bottom side of leaf indicates this dangerous fungal disease which very quickly progresses. The plant completely "dries up". At the same time tubers become covered by spots, at first outside, then inside.
Ways of fight: anticipation and prevention. At wet weather, after rain process potatoes foliage from external and inside the Bordeaux liquid. For strengthening of natural protection of potatoes you carry out regular spraying of leaves by horsetail broth.
Striped shchelkun. Larvae of this bug - wireworms do huge harm to potato landings. At the wireworm yellow body and the dark brown head. Since July, they devour young roots, and then gnaw through the courses in potatoes tubers.
Ways of fight: regularly you loosen the earth around potatoes to destroy larvae of bug - shchelkun. Make traps, digging in level with the earth of box with potato cleanings. Devastate them, filling with new cleanings.
Scab. Tubers become covered by brown spots and cracks. They are badly stored.
Ways of fight: control structure of the soil. You bring in it humus and manure. Practice crops of siderat before landing of potatoes. Change arrangement of landings every year.