Pest control of honeysuckle

Disease

Honeysuckle disease is less, some areas found honeysuckle brown spot, white silk disease, powdery mildew.

Brown spot (pseudocercospora leaf spot): mainly harms leaves, the disease is common and serious. The disease is serious in the rainy season from July to August. Control methods: combined with winter pruning, removal of diseased branches and leaves, concentrated burning or deep burial, in order to reduce the source of bacteria; starting from late June, spray with 1 ∶ 1.5 ∶ 300 Bordeaux solution or 50% bacilli wettable powder, once every 15-20 days, 2-3 times in a row.

White silk disease: mainly harms the root and stem. High temperature and rain are easy to occur, the incidence of young flower stump is low, and the incidence of presbyopia pier is high. Prevention and treatment methods: pick the soil to dry the roots in spring and autumn, scrape the roots, irrigate them with Bordeaux solution, and apply the roots with pentachlorophenol sodium; open ditches with a depth of 30 cm around the diseased plants to prevent spread.

Anthracnose: fungal disease, the leaf shows a variety of disease spot symptoms, the disease spot is nearly round, when the leaf is wet, the leaf is covered with orange-red sticky matter, which is a large number of conidia. The adult garden, especially the adult garden with extensive winter culture and management, poor plant growth and low-lying terrain, has a serious disease. There are two peak epidemic periods every year: March to April and September to October. Control methods: agricultural measures, removal of residual plants and diseased leaves; centralized burning; chemical control: soak the rich second generation series of white powder, anthrax and black star special agents in water for 5 minutes for 10 minutes before transplanting During the onset of the disease, 15-30kg was sprayed evenly on the leaves of each bag of the rich series of products produced by Beijing Tianzhu Yinong Co., or 30-45kg for each group of white powder, anthrax and black stars. Spray once every 7-10 days, 2-3 times in a row can be eradicated.

Anthrax

Powdery mildew: mainly harms new shoots and twigs. Control methods: apply organic fertilizer to improve disease resistance; strengthen pruning to improve ventilation and light transmission conditions; combined with winter pruning, try to cut off diseased buds and overwintering bacteria; spray Baume 0.1-0.2 degree stone sulfur mixture when the scales are cracked in early spring and the leaves are not unfolded.

Insect pest

The main pests are aphids. Inchworm, coffee longicorn beetle, bark moth, etc.

Aphids (carrot microtubule aphids): generally propagate rapidly in overcast and foggy weather in April and May, mainly harming leaves, twigs and flower buds, making leaves and buds curl, growth stop, resulting in reduced production. Control method: use 40% dimethoate emulsion 200 times solution, spray once every 7 days, can be basically eliminated for 2 times in a row. Pay attention to the back of the blade when spraying.

Honeysuckle inchworm: harm the leaves, seriously eat all the leaves, if occurred for 3 consecutive years, the whole plant will die, control methods: through pruning to remove the basal branches and withered leaves, clean the pupa overwintering place. When it occurs, spray 1500-2000 times dichlorvos solution or 1000 times solid trichlorfon solution once every 5-10 days for 2 consecutive times. Discontinue medication 8-10 days before flower picking.

In recent years, the trial attractant has been used to kill the unmated female moth, cut off its abdomen, soak it in 95% alcohol for 20 hours, pour it into a mortar and grind it, replenish the solvent to the original number, that is, the crude extract of sexual attractant, and soak 5 female moths per milliliter of alcohol as the best sexual attraction dose (5FE). Cut the filter paper into long strips, roll it on a 20 cm long thin wire, drop the crude sex attractant on the paper roll to form a trap, place the trap horizontally on a bowl with a diameter of 15-20 cm, put a small amount of water in the bowl, add a little washing powder in the water, and the distance between the water surface and the trap element is 1 cm, which is a simple trap. At about 18:00 every afternoon, the distance between the plants is about 30 cm, and the distance between the traps is 2-3 meters. The male moth is then lured and falls into the bowl. The trap was recovered the next morning, and the trap core was stored in a test tube or glass bottle to kill the trapped male moth. The sexual attraction effect of the luring core can generally last for 8-12 days, and the effect is the best within 5 days.

Coffee tiger longicorn beetle and Chinese saw longicorn beetle: borer pests. Coffee tiger longicorn beetle, serious harm. According to the investigation, the murder rate of Huadun in Zhengcheng Town, Pingyi County, for more than 10 years, reached 95%. The Chinese saw longicorn beetle is harmful only in some areas. Overwintering as larvae and adults. After the larva harms the dry branch, the feces are discharged into the wormhole, blocking the wormhole, especially hard. Pesticide control generally does not work. In recent years, the swollen leg wasp of longicorn beetles released in the field was parasitized on the larvae and pupae of coffee tiger longicorn beetles, and achieved good results. The most suitable temperature for releasing parasitoids in the field is 25-30 ℃, and it is suitable for light breeze in sunny days. When the bees are released from July to August, the parasitism rate can reach 70%, the one-time release rate is reduced by more than 75%, and the overwintering survival rate of swollen-legged wasps is about 80%.

Chinese sawed longicorn beetle

Salix bark moth and leopard bark moth: the larvae eat the roots and stems, the plant growth declines after being killed, the sterile buds, and the whole plant dies if it is killed for several years in a row. For more than 10 years, the damage rate of flower piers can reach 35-60%. Control method: combined with pruning, withered branches and over-dense branches were removed; from late July to late August, 1500 times of omethoate EC was sprayed with 0.3% kerosene.

Leopard bark moth

Red spider: it happens from early spring to early summer. The breeding rate is high, the occurrence is fast, and the harm is great. Those who are light will reduce their production, while those who are heavy will have no harvest. Control methods: early spring with Baume 0.10.2 degree stone sulfur mixture, 40% dimethoate 2000 times liquid spray, once every 7 days, twice in a row. Spray in time, continuously, thoroughly, no leakage pier, no leakage branch.

Honeysuckle leaf wasp: belongs to Hymenoptera, Chrysopidae. The larvae of Honeysuckle wasp are harmful leaves, and the newly hatched larvae like to climb on the tender leaves to feed. The first and second generations cause serious damage in the whole year, but they are not the varieties of honeysuckle with thick leaves and long and hard hairy hairs. Prevention and cure method: artificial prevention and cure. When there is a large number of insect cocoons can be dug under the trees in winter and spring to reduce the source of overwintering insects and chemical control. The larvae were sprayed with 1000 times of trichlorfon or 1000 times of fenvalerate.