Prevention and control of honeysuckle diseases and insect pests

Honeysuckle, also known as honeysuckle, honeysuckle, is the dry flower bud of honeysuckle family and many kinds of plants of the same genus, with the function of clearing away heat and detoxification. It is suitable for diseases such as febrile fever, wind-hot cold, sore throat, pneumonia, dysentery, carbuncle and sores, etc., which is one of the commonly used traditional Chinese medicinal materials. Honeysuckle is produced in most provinces and regions in the country, among which Shandong, Henan and Guangxi have the largest output and the best quality. There are many diseases and insect pests in honeysuckle. To do a good job in prevention and control is one of the key measures to increase the yield of honeysuckle and ensure the market supply.

1 Brown spot

Leaf diseases are common, resulting in plant growth weakness. Most of the disease occurred in the middle and later stage of growth, the peak period was from August to September, and the disease was serious under rainy and humid conditions. Brown dots were formed on the leaves at the initial stage of the disease, and then expanded into brown round spots or irregular spots. There are gray-black mildew on the back of the disease spot, and the leaves fall off when the disease is serious, affecting plant growth and flowering. Control methods: cut off the diseased leaves, then spray with 1 ∶ 1.5 ∶ 200 Bordeaux solution, once every 10 days, 2 times continuously.

2 powdery mildew

The disease is serious under warm, dry or shady conditions. At the initial stage of the disease, white dots were produced on the leaves, and then gradually expanded into white powder spots, which continued to spread all over the leaves, causing leaves to yellowing, wrinkling and deformation, and finally causing falling flowers, fallen leaves and branches to dry up. Prevention and treatment methods: clear the garden to treat the disease and residual plants; during the occurrence period, use 1000-fold solution of 50% methyl topiramate or B010 biological agent spray.

3 anthrax

The disease spot of the leaf is nearly round, and when it is wet, the leaf is covered with orange-red spot-like sticky matter, which is a large number of conidia. Control methods: ① removed the residual and diseased leaves and burned them centrally; before transplanting, ② soaked seeds with 1 ∶ 1 ∶ 150 × 200 Bordeaux solution for 10 minutes; 65% Dysen zinc 500 times solution or 50% bacilli 800 times 1000 times solution was sprayed during the onset of ③.

4 rust

After the injury, tea-brown or dark brown spots appeared on the back of the leaves; some near-round disease spots appeared on the surface of the leaves, and there was a small blister in the center, which could lead to leaf death in severe cases. Control methods: after ① harvesting, the withered plants and diseased leaves were centrally burned; at the initial stage of the onset of ②, 50% dinitrate powder was sprayed 200 times or 25% powder was sprayed 1000 times, once every 7 to 10 days, 2 times in a row.

5 aphids

It harms leaves and twigs, causes leaves and buds to curl, growth stops, and yield decreases sharply. The insect situation was serious from April to June, and it spread more rapidly before and after "the Beginning of Summer", especially in cloudy and rainy days. Control method: spray with 40% dimethoate 1000-1500 times liquid or Tianzhisong 1000-1500 times liquid, several times in a row, until killed.

6 longicorn beasts

The adults were unearthed in May and laid eggs in the epidermis at the upper end of the branch. The larvae first move in the epidermis, then drill into the human xylem, eat at the base, and overwinter at the base or root after autumn. After the plant was injured, it gradually aged and withered, and even died. Control method: when the adult is unearthed, the flower stump is infused with 1000 times liquid of 80% trichlorfon. In the peak spawning period, spray 50% phoxim EC 600 times every 7-10 days; find worm branches, cut them off and burn them; if there are wormholes, stuff them with cotton wool soaked in 80% dichlorvos solution, seal them with soil and poison the larvae.

7 inchworm

The first stubble post-anthesis larvae nibbled away at the leaves, resulting in a reduction in yield. Control method: after the Beginning of Spring, dig the soil within 1m around the plant to kill the pupa. At the initial stage of larval occurrence, 2.5% fish rattan essential oil 400 × 600 times was sprayed for control.