Diseases currant and gooseberry

August 12, 2017 17:52 | Fruit Plants

Powdery mildew (sferoteka) manifested in the spring, usually after flowering: the young leaves, shoot tips and still green gooseberries covered with white bloom and become loose as if sprinkled with flour.Plaque is made up of tiny spores.Later plaque thickens, darkens and becomes

felt like a small black dots on its surface.In currant mildew affects the leaves and shoots.The disease occurs in the same way as on the gooseberry.

Control measures. autumn or early spring collect and burn fallen leaves affected.Trim only need to hook blackened ends with a small seizure of healthy tissue (for 1 to 2 buds).To eradicate the infection to spend spraying bushes and the soil beneath them iron sulphate (300 g per 10 liters of water).During the growing season at the first signs of the disease can be sprayed bushes soda (laundry) soda (soda '50 and the same soap per 10 liters of water), repeating the process 2 to 3 times in 8-10 days.Instead of soda, you can use the infusion of mullein, or rotted manure (1 part

3 parts of water, leave for 3 days, then diluted with water three times and drain).Spraying is carried out at night or in cloudy weather during the day.On currants allowed to use before flowering and after harvest sulfur drugs (40-60 g) and 10% emulsion of topaz (2 g per 10 liters of water).

Anthracnose develops mainly on the leaves, but can affect young shoots and fruit stalk.Often, in the second half of summer bush of red currants and gooseberries begin to lose their leaves, and in August are completely bare.

causative organism overwinters on fallen leaves.Sick leaves are first covered with small brown spots, gradually merging, then turn brown and wither.In other parts of the plant formed small brown sores.

Control measures. C.Powdery mildew. In case of illness using 1% -s' Bordeaux mixture on young leaves, repeat spraying after collecting berries.

Septoria Leaf Spot (white spot) strikes currant and gooseberry on the leaves in June formed small angular or rounded gray spots with brown border and dark dots (pycnidia) in the center of the upper side of the sheet.Later the same spots appear on the one-year shoots, their fabric is torn. Control measures. See. Anthracnose. increasing plant resistance to disease promotes soil application of manganese sulfate and other trace elements - copper, I of boron, zinc - on the background of complete mineral fertilizer.

Column rust seen in the second half of the summer: the leaves on the upper side there are small yellowish spots, and on the bottom they are formed first of a handful of orange, consisting of spores of the fungus, and then they turn into pillars of a dispute such as brick-colored hairs.

Control measures. Before swelling of kidneys make the soil phosphorus-potassium fertilizers and micronutrient fertilizers Agricola for fruit crops (40 by 10 liters of water to irrigate the soil).Before flowering and after harvest bushes spray 1% Bordeaux mixture.Autumn destroy fallen leaves, dig the soil under the bushes.

Petals - mycoplasma (viral) disease.Common to all types of currants.The causative agent is in the plant sap, so infected the entire shrub and its partial or complete crop fails.The most characteristic features: the petals are abnormally narrow and small, often take unusual for them violet color, berries are not tied.Leaves instead of five lobes are three-blade with rough and veins lose their typical smell of currant.

transmitted diseases with planting material.Within the area covered by doubleness CECIDOPHYOPSIS RIBIS and aphids. Control measures. only healthy material is taken for landings.Mandatory fight against the main carrier of the infection - currant bud mite.

Increased doses of phosphorus-potassium fertilizers and foliar (the leaves) feeding a solution of trace elements (molybdenum, boron, manganese) increase currant resistance to terry.Increasing doses of nitrogen fertilizer, in contrast, promotes the development of the disease.

Pests Raspberry

raspberry beetle - the most common pest of raspberries and blackberries.The body of the beetle oblong-oval, about 4 mm long, covered with thick reddish hairs.Eggs are laid in flowers, and later on the top of the ovaries.Hatch larvae penetrate into the fetus and damage it. Control measures. autumn digging of the soil and spring loosening it around the bushes contribute L1beli mostly wintering there beetles and larvae during budding raspberry recommended shaking off the bugs from the bushes on the mat.Process drug kinmiks 2.5 ml per 10 liters of water).

raspberry mole kidney damage.Overwinter young caterpillars in dense white cocoons under peeling bark of stems, stumps on raspberries and waste residues.In the spring they leave the cocoons and penetrate into the kidneys.Here pupate, turn into butterflies lay their egg inside the flower on. Control measures. Autumn cleaning debris and plant residues in the garden.Cutting and destruction otplodonosivshie shoots, leaving no stumps, in the fall or early spring (March).Early spring treatment drug kinmiks (2.5 ml per 10 liters of water).

Sheet aphid sucks sap from the leaves raspberries.Large colonies does not form.Are carriers of viral diseases. Control measures. Spraying plant infusions and decoctions, recommended against aphids on other cultures.