What to Do When Bamboo Leaves Have Bugs? Teaching You the Correct Prevention and Control of Bamboo Leaf Pests
When mentioning bamboo, I believe everyone is familiar with it, especially in early spring when it produces a large number of bamboo shoots, which are very popular among people. However, during the growing period, it can be attacked by various bugs. So what should be done when bamboo leaves have bugs?
1. What to do when bamboo leaves have bugs?
When bamboo leaves have bamboo locusts, during May-June when locust eggs hatch and nymphs emerge from the soil, add 50-100g of wettable trichlorfon to 100 jin of human urine or livestock urine, then soak corn cobs or rice straw thoroughly in it and scatter it under the bamboo grove as a poison bait. When bamboo borers appear, spray 2.5% trichlorfon powder at 3-4 kg per mu. When notodontid moth pests appear, spray 50% dichlorvos 2000x solution. When tussock moth pests appear, spray 90% trichlorfon 2000x solution for control.
2. What are the common pests of bamboo?
1. Pests during the shoot stage
Mainly including bamboo shoot owlet moths, Xiuxiu bamboo shoot owlet moths, bamboo owlet moths, bamboo weevils, bamboo stink bugs, and others. The larvae of owlet moths bore into and feed on bamboo shoots. Both adults and larvae of bamboo weevils bite and feed on bamboo shoots from the inside, making it difficult for the shoots to grow into bamboo. Even if they can grow into bamboo, the broken tops that form greatly reduce their utility and ornamental value. The nymphs and adults of stink bug pests suck the sap from the young tender parts of bamboo, weakening the growth of bamboo shoots and young bamboo. In severe cases, it causes the death of bamboo shoots and the standing death of young bamboo.
Control methods: For controlling owlet moth pests, the following measures can be taken: dig out damaged shoots early; cover with soil to prevent overwintering eggs from hatching; spray with 80% dichlorvos 1500x solution. For controlling bamboo weevils, measures include: turn over the soil in winter to destroy the adult overwintering soil chambers; manually capture adults by taking advantage of their death-feigning behavior; peel open the shoot sheaths below the oviposition holes to kill eggs and larvae; inject or brush 80% dichlorvos emulsifiable concentrate 1000x solution into the oviposition holes. For controlling stink bug pests, measures include: protect the red-margined predatory stink bug to control pests with pests; during the period of concentrated damage to early-emerging bamboo shoots in April and the peak period of adult clustering from July to August, spray 25% phosmet 2000x solution in the morning and evening each day to kill them.
2. Leaf pests
Mainly including four major categories of pests: bamboo locusts, bamboo borers, tussock moths, and notodontid moths. Bamboo locusts are the main pests causing large-scale damage to bamboo. When they break out, they eat all the bamboo leaves, leaving it looking as if it has been burned. In mild cases, the next year's shoot production is reduced; in severe cases, entire patches die. When bamboo borers and notodontid moth pests break out, they can also eat all the bamboo leaves of tens of thousands of mu of bamboo forest. When tussock moth pests cause severe damage, a single bamboo plant can have as many as 2000 or more larvae, with 500 or more in ordinary cases. After the bamboo leaves are eaten, the bamboo plants die and shoot production decreases.
Control methods: For controlling bamboo locusts, measures include: during May-June when locust eggs hatch and nymphs emerge from the soil, use urine as a poison bait, that is, add 0.1 to 0.2 jin of wettable trichlorfon to 100 jin of human urine or livestock urine, then soak corn cobs or rice straw thoroughly in it and scatter it under the bamboo grove as a poison bait; take 1 jin of yellow azalea, add 20 jin of water and boil, filter, then dilute each 500g of stock solution with 250 kg of water and spray to kill nymphs and adults. For controlling bamboo borers, methods include using black light traps to kill adults; spraying 2.5% trichlorfon powder at 3 to 4 kg per mu. For controlling notodontid moth pests, during outbreaks spray 50% dichlorvos 2000x solution. For controlling tussock moth pests, methods include manually scraping off eggs and destroying cocoons and using black light traps to kill adults; during the adult occurrence period from June to October, spray 90% trichlorfon 2000x solution for control.
3. Branch and trunk pests
Mainly including bamboo gall wasps, bamboo branch wasps, long-tailed wasps, and others. The larvae absorb nutrients within the internodes of bamboo tips and small branches, causing the internodes to become dense and swollen and forming galls. The affected bamboo branch tips droop and are easily broken by wind. The leaves at the damaged parts become smaller and withered yellow, affecting shoot emergence and normal growth. In severe cases, the plant can die.
Control methods: Cut down damaged bamboo plants every autumn and winter, and burn the branches and leaves in a concentrated manner; after adults emerge from their holes in April to May, spray biological pesticide nicotine 1.1% emulsifiable concentrate 1000 to 1500x solution to kill them; apply “621” smoke agent at 1 jin per mu for fumigation; inject 5% rapid-kill concentrate into bamboo stems to kill larvae inside the galls; combine with winter plowing and loosening of the soil in the bamboo forest, tending and pruning, dig out overwintering egg masses, and burn them in a concentrated manner.