Shandong Hengda pest thrips yellow ginkgo seedlings base tan female, male yellow, body length of about 1.2 mm. A pair of transparent wings and elongated. Control methods: early spring fertilization, improve Ginkgo leaf chlorophyll content, enhance tree vigor. Shandong Hengda ginkgo seedlings base 1 pest control. Ginkgo blight soil disinfection before sowing, spreading 2.5 kg of ferrous sulfate per acre or 4 kg carbendazim. After feeling ill can be sprayed with carbendazim (1 part drug against 200 parts water) or the city of Tianjin A base plate (1 part drug against 500 parts water). 2. Small leaf roller Prevention winter Shuping painted white with lime 5 kg gold ginkgo seedlings, dichlorvos 0.1 kg, 20 kg of salt 1 kg watered brushing trunk could be very controlling effect. Adult occurrence period, spray and omethoate 1000 times phoxim. 3. Prevention beetles parts with l dichlorvos plus 30 parts of water, add a few drops of kerosene, with a cotton ball soaked in syrup after, stuffed cavities, or occur in adults of manual capture adults. 4: 1 ginkgo leaf blight. After the onset of late blight and early winter ginkgo ginkgo leaves, ginkgo branches, diseased leaves collected and concentrated burned, in order to reduce the spread of pathogens, 2. According to the law onset ginkgo seedlings should first improve site conditions and cultivation techniques not measure. Soil drought, barren lots, more organic fertilizer (manure, green manure, farmyard manure, etc.), in order to increase soil fertility and soil structure. Keep the soil moist, soil water holding capacity throughout the year at 60% to 70%. At the same time pay attention to timely drainage during the rainy season ginkgo seedlings sold to improve tree resistance to disease. 3. Ginkgo seedlings transplant early stages, spray 1 times 50% more Yin Ling 500 times every 15 to 20 days. Peak incidence, spray 1 times 50% return Yin special 800 times every 15 to 20 days, or 70% zineb 600 times. Late onset can be sprayed 1.2.2 200 times Bordeaux mixture Shanghai ginkgo seedlings ginkgo seedlings _ _ provided by the Shandong Hengda Hengda ginkgo ginkgo seedlings base. Shanghai ginkgo seedlings ginkgo seedlings _ _ Shandong Hengda Hengda ginkgo ginkgo seedlings base (www.sdhdyx.com) this year introduced a new upgrade, the above picture is for reference only, please call the telephone or pictures on this page, for the latest Information, Contact: Zhuo (Zhuo) Changping.