For honeysuckle, aphids, coffee beetles, wood beetles, inchworms, etc. are the main pests.
Winter roundtail aphid and carrot microtubule aphid
Symptoms
The adults and nymphs of these diseases and insect pests suck the juice from the leaves, causing the leaves to curl and turn yellow. The flower buds are damaged and deformed during the early stages; honeydew is secreted during the damage process, leading to sooty disease and affecting leaf photosynthesis. In October, this insect will migrate from the first host Umbelliferae to honeysuckle, mate with each other, lay eggs, and spend the winter. It will cause the most serious damage in early and mid-May, seriously affecting the yield and quality of honeysuckle. Generally, it will be migrated back to the first host in June. From 010 to 1010, spray with 1000 times of 40 dimethoate emulsion or 1000 to 1500 times of 80 dichlorvos emulsion, once every 7 to 10 days, 2 to 3 times in a row. It is not advisable to spray honeysuckle at least half a month before picking to prevent pesticide residues on the honeysuckle.
Control methods
Coffee beetle
Coffee beetle is an important stem borer pest of honeysuckle. Mainly distributed in the old honeysuckle producing areas of Shandong, especially Pingyi and Fei County. After more than ten years of investigation, the killing rate of Hua Dun has reached 80%. The destroyed honeysuckle will grow weakly and the whole plant will die after a few years. From 010 to 1010, during the emergence period of adults and the initial hatching of larvae from April to May, spraying 80 dichlorvos emulsion 1000 times has a certain effect on the control of adults and newly hatched larvae.
Symptoms
Control methods
After hatching, the leopard wood beetle larvae burrow into branches or new shoots. After 3-5 days, the new branches of the damaged honeysuckle will wither. When the larvae grow to 3-5 mm, they will discharge insect feces from the drilled holes. It’s easy to spot pests at this point. The larvae bite between the xylem and phloem, making branches prone to breaking in the wind. There are often several dung holes on one side of the damaged branches, and the dung is cylindrical and light yellow. From September to October, the flower mounds will wither. This insect has a habit of damaging plants.
Leopard wood moth
: Clean up in time and observe carefully. After the second crop of flowers is harvested, combine the pruning from late July to early August to cut off the branches with insects. If you prune too late, the larvae will eat the lower thick branches and then cut off the branches, affecting the growth of the flower mound; spray pesticides.
Symptoms
Control methods
After the larvae hatch, small silverfish swarm under the old skin of honeysuckle, then grow to 10-15mm, and then gradually spread. However, the permanent head of the larvae was destroyed by the phloem and shallow xylem between the trunk and the rhizosphere, forming a wide insect tunnel and expelling a large amount of insect feces and sawdust, seriously damaging the physiological functions of honeysuckle and blocking plant nutrients and water.
Willow stem borer
Strengthen management. Honeysuckle, damaged by Lycopodium larvae, will have a weak flower mound, and most of the larvae will be eaten by the old holes. Therefore, it is very important to strengthen tending and management, timely fertilization and watering, and improve insect resistance. For chemical control, spray pesticides, but due to the high concentration of pesticides, pay attention to safety when using them
Symptoms
Control methods
The honeysuckle looper is an important leaf-eating pest of honeysuckle. When it happens, the leaves are eaten away and only the branches remain.
Honeysuckle looper
Clean branches to reduce the source of overwintering insects; spray dichlorvos or EC 1000-1500 times when they are young to control them. The above is the most comprehensive method of pest and disease control for honeysuckle. I hope everyone can grow healthy honeysuckle!