Sugar orange planting techniques: what are the diseases and insect pests of sugar orange in August?

What are the diseases and insect pests of sugar orange in August? Please introduce and guide the methods of prevention and control in August, which is from summer shoot growth to autumn shoot emergence, so there are more diseases and insect pests, the main pests are: rust mite, red wax scale, leaf moth, skin explosion, longicorn beetle; the main diseases are: canker, foot rot; detailed control methods are as follows. Shatang tangerine pest control method in August: rust mite (rust wall louse): July-August is the critical period for control. Generally, it should be fully sprayed once in the first and middle of July, and again in the first ten days of August, depending on the pest situation in the middle and late August. The effective medicament is 24% Wanling water agent 800x or 20% Haofeng EC 1000 times, irrigation can reduce the harm when drought. Red wax scale: the second control can be carried out 15 seconds and 20 days after the nymph hatching peak in early July. The medicament uses 10% Suixiaoling EC 250x or 480g / liter Daonuo EC (chlorpyrifos) 800x and 40g / L chlorpyrifos EC 1000 times. If you miss the suitable period for control, you can appropriately increase the concentration, which has a good control effect on the aged young scale and female adult scale. Leaf miner: the shoot emergence period is the most serious in summer and autumn from July to September. During the period of prevention and control, the spray is usually sprayed once when the shoot is 5ml / 6cm, and then every 7 days. Available medicine: 24% Wanling liquid 800x or 2.5% Wanliwang 1000 times plus 4.5% Lufu EC 1000 times, spray 2Mel 3 times in a row. Bark bugs: continue to control adults who come out of the hole late, and use 30% Nongerwang EC or 40% dimethoate, 80% dichlorvos, 5 colors, 10 times solution on the bark of the injured area to kill the larvae. Longicorn beetles: artificial hooks kill overwintering larvae and pupae, and catch adults at noon on a sunny day. To prevent longicorn beetles from going out to lay eggs. Scrape the eggs and larvae at the base of the trunk. 30% Nongerwang EC or 80% dichlorvos and 40% dimethoate can also be stuffed into the hole to kill larvae. Sugar orange disease control method: canker: find diseased plants and burn them in time. New shoots must be kept in order to prevent and cure canker. Therefore, it is necessary to spray more than three times from the beginning of germination of new shoots to the maturity of new shoots (combined with the control of leaf miner). Spray the medicine for the first time when a grain of rice grows on the new tip, and then once a week thereafter. By doing so, we can get twice the result with half the effort. The main purpose of hanging fruit trees is to protect fruit, and it is mastered to spray 0.01% Tianfengsu EC 2500 times at 10 days, 32 days and 55 days after flowering. Drugs to prevent ulcer disease can be selected: 6000 units / ml of agricultural streptomycin plus 1% alcohol, 77% can kill 300 times the solution of wettable powder, etc. The drugs for treatment can be selected as follows: ketoxime 700 times solution, the prevention and treatment rate is up to 90%. Foot rot: when a diseased plant is found, remove the soil from the root neck of the diseased plant, scrape off the decaying skin and discolored xylem with an alcohol sterilized knife, gently scrape a layer of disease-free tissue, wash with alcohol, smear with 1 ∶ 1 ∶ 100 Bordeaux solution or copper sulfate 30 WP200 solution or 64% Tian Liang WP200 solution or 25% Ruidui wettable powder 400x solution, replace the original old soil, bury loose sand loam, and promote new roots. In florescence, young fruit stage and fruit expansion stage, 0.01% Tianfengsu 2500ml 3000 times solution can be added while spraying insecticide, which can protect flowers and fruits, reduce fruit drop, fruit cracking, abnormal fruit, and improve fruit quality. Click to get more sugar orange planting techniques click to get more fruit planting techniques