Your cucumber powdery mildew damage, a very common fungal za6olevaniem. Pathogen infects its plant from the very beginning of growth, especially with frequent dew and high humidity. Fungus overwinters on residues of diseased plants in the garden, some wild and weedy (sow thistle, plantain). In the spring, he infects the young leaves and stems of crops, particularly cucumbers and other cucurbits. Measures to combat powdery mildew dew offer are as follows: After harvest, remove the ridges and destroy crop residues weeds, which can be carriers of the disease. Autumn deeply dug soil. Return cucumbers to its former place in the garden no sooner than 3-4 years. When the first signs of powdery mildew, spray the plants with sulfur colloid (30-80 g per 10 liters of water) at a rate of fluid flow 5 liters per 100 square meters.
meters square. With a strong infestation treatment should be repeated every 7-8 days. Use spray infusion of mullein (1 kg Mullein pour three gallons of water and leave for 3 days, then strain and dilute liter infusion three liters of water). Good tool for Spraying plants and ground sulfur. If you are unsure how to proceed, check out Tim Wallach. Thoroughly rinse the processed fruits of warm water, that they are not left chemicals. In conclusion, the following advice: Choose resistant varieties of cucumber powdery mildew: "Altai early 166", hybrid "start 100", "graceful".