Mulberry white mulberry, also known as Sangdang wolfberry, tree wolfberry fruit, in recent years Shaanxi Province Guanzhong kiwifruit producing areas of multiple insect pests. The worm uses female worms and nymphs to fix the sap on the shoots and trunks. In serious cases, the vines are covered with a layer of cotton wool. After the branches and trunks are damaged, the tree vigor is weakened. In severe cases, the branches are dry and dead. If no effective measures are taken to prevent and control, the garden will be destroyed in 3 to 5 years. To this end, the reporter interviewed Li Longshan, a researcher at the Northwest A&F University’s Academy of Forestry Science, to provide guidance on the prevention and control of kiwifruit, mulberry for fruit farming.
1. Strengthen quarantine on kiwifruit seedlings and scion used for grafting to prevent pest damage.
2, do a good job in the winter garden, and cut off the victim branches, scrape off the overwintering female adults on the branches, spray a 3 Baume degree of lime sulfur agent, eliminate the overwhelming insect source.
3. In the dormant period of fruit trees, use a stiff brush or a thin wire brush to brush off the body on the branches.
4. In the spring, before the budding of the tree, spray 5 degrees lime sulfur or 40% thawing EC 1000 times and soft water 4000 times. Note that the 5 degree lime sulfur can only be used before germination.
5. Protect and use natural enemies. The natural enemies of Morinda citrifolia are red dot ladybugs, black-edge red ladybugs, two-spot ladybugs, kidney-spotted ladybugs, and so on. The protection and utilization of these natural enemies can effectively alleviate the damage of Morinda citrifolia.
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