The bamboo resources in the south are abundant, but the quality is not too high. Bamboo pests and diseases occur from time to time, which seriously affects the yield and quality of bamboo and bamboo shoots, resulting in a decline in economic benefits. The majority of forest farmers must seize the opportunity to timely control the bamboo forests with pests and diseases to achieve the best economic benefits.
The main insects in the bamboo shoots are bamboo shoots, night larvae, bamboo shoots, bamboo shoots, elephants, bamboo elephants, elephants, bamboo shoots and bamboos that harm bamboo shoots and tender bamboos. Thin enamel, 闽曼缘蝽, bamboo egg 蝽 蝽. They eat bamboo shoots, causing bamboo shoots to retreat or bamboo rafts deformed. The larvae of the night moth, the elephant larvae, and the larvae feed on bamboo shoots from the inside of the bamboo shoots, so that the bamboo shoots become the bamboo shoots. Even if the bamboo shoots can be made into bamboo, the broken bamboo shoots are easy to break and the utilization value is reduced. The nymphs and adults of the aphid pests absorb the juice of the young part of the bamboo, which weakens the growth of bamboo shoots and tender bamboo. When it is serious, the bamboo shoots die and the tender bamboo stands.
The prevention and treatment method is to combine the Laoshan loose soil, remove the weed shrubs in the forest, improve the sanitary environment of the bamboo forest, and have good effects on eliminating the early-age larvae of the bamboo shoots and controlling the wintering of the adults in the soil. At the same time, before the bamboo shoots are unearthed, the forest land is sprayed with 800 times liquid of trichlorfon or marathon. After the bamboo shoots are unearthed, they are sprayed once every other week, which is effective for controlling various bamboo shoot insect pests. For the control of nocturnal moth pests, early digging and returning bamboo shoots can be taken; the soil will be weeded and soiled; the soil will be covered to prevent hatching of wintering eggs; and the pesticides can be sprayed with 50% dimethoate or 80% dichlorvos 1500 times. To prevent and control elephant worms, it is possible to take winter soil and destroy the wintering soil chamber of adult worms; artificially capture artificial dinosaurs; peel off the shells under the spawning holes to kill eggs and larvae; use 80% dichlorvos emulsifiable concentrate 1000 times, or The spawning hole is painted 3 to 6 times with 40% dimethoate. The cockroach pests can be artificially caught by the insect-trapping net; the red-edge mammoth is protected and the biological control is carried out; when the bamboo shoots of the bamboo shoots are opened in the middle of May, the "bitter smoke" powder is sprayed to kill the adult worms. Use 2-5 kg ​​per mu; in the peak period of adult clusters, use 40% dimethoate 4000 times solution, or 25% imipenem 2000 times solution, or 50% malathion 1000 times solution spray to kill each morning and evening.
The bamboo seedling pests harm the larvae of the bamboo seedlings, such as the larvae, the tigers, the crickets, the crickets, the golden worms, the mantles, etc., which are also prevalent in some areas; the locusts, leaf mites, and bamboo rafts that harm the young leaves of the bamboo shoots ( Red spider), scale insect, bamboo bud, and moth.
The prevention and treatment method is to select soil pests when selecting nursery fields and afforestation sites. If the density of insect populations is large, pest control measures should be taken. The nursery land uses 2 to 2.5 kilograms of trichlorfon powder or 2 kilograms of high-propylene six-six powder per acre, and evenly turns into the soil, and then raises the seedlings after half a month. In addition, it can be combined with land preparation. After emergence, it was found that the underground pests harmed the bamboo roots, and the trichlorfon 500 times liquid or the marathon 800 times liquid could be used to ditch the water between the seedlings, or to kill the poison in the seedling bed. The tiger can be killed in the early morning in the bamboo. The seedlings were trapped in the soil near the seedlings, and the next morning was killed. For some insecticides such as aphids and scale insects, they can be sprayed with 3000 times liquid or dichlorvos 2000 times.
The leaf pests mainly include seven major types of pests: bamboo stalk, wild scorpion, scorpion moth, poisonous moth, scale insect, leafhopper and aphid. Bamboo carp is a major pest that harms bamboo in a large area. When it occurs, the bamboo groves are full of yellow, causing the bamboo plants to grow poorly or withered; the wild cockroaches can occur in large areas, and the bamboo leaves are eaten up; the scorpion pests are large. When it occurs, the bamboo leaves of tens of thousands of acres of bamboo forest can be eaten up; when the poisonous moth pests are seriously damaged, there are more than 2,000 insects per plant, and there are generally more than 500. After the bamboo leaves are eaten, the bamboo plants die and the bamboo shoots are reduced. . Scale insects, leafhoppers, and aphids endanger the young shoots and young leaves of plants, sucking juice, causing the shoots to wither, the young leaves curling, and even forming insects.
For bamboo rafts, you can spray the trichlorfon powder to kill cockroaches before the fleas are not hatched on the bamboo in May each year, or use the smog to kill the bamboo scorpion after jumping on the bamboo, or use the urine powder mixture to trap the bamboo stalks, that is, 100 jin. Urine mixed with 6% six or six powder 1-2 kg, cut the straw into 4-5 inches long, dip in the urine for 8-24 hours and take it out in the forest. For the control of wild cockroaches, black light should be placed in a higher open area, generally 20-24 hours per night in late May. Can smoke agent, spray 2.5% trichlorfon powder or 50% dichlorvos 1000 times solution. It is also possible to release 100,000 to 150,000 heads of Trichogramma per acre from mid-June, three times a day, five days apart. At the same time, it protects predatory natural enemies such as birds and parasitic natural enemies such as Trichogramma, which are used for artificial bee-keeping and artificial application of Beauveria bassiana, and strengthen the inter-forest loose soil and collect bamboo shoots to burn. Control the pests of the boat moth, when it occurs, it can be sprayed with 2.5% trichlorfon powder, or it can be sprayed with 90% trichlorfon, or 50% phoxim or 50% dichlorvos 2000 times; It can be artificially scraped and killed by cockroach and chemical control. It can be sprayed with 2.5% trichlorfon powder or sprayed with 90% trichlorfon or 80% dichlorvos 2000 times. The scale insects are easy to transfer to the new area with the transfer of the mother bamboo. It is necessary to strengthen the quarantine work and find the scale insects, which should be eliminated and then transplanted. A scale insect occurs in the bamboo forest, which can be sprayed with a dichlorvos emulsion or a marathon emulsion 1000 times in the pup stage. To control leafhopper pests, acetylmethophos can be applied in the late May to control, using 2-5 kg ​​per acre. To control aphids, spray with 1.5% dimethoate powder or 2.5% trichlorfon powder or 1000-2000 times with 50% dimethoate emulsion in the active period of pests, once every 10 days, two or three times in succession.
Bamboo forest diseases mainly include blight and arbuscular diseases. Blight disease is a major obstacle to the production of bamboo. The disease is infiltrated in the leaves of Hsinchu, and it occurs in July-September. After the disease in Hsinchu, brown spots appeared in the branches of bamboo stalks, spreading and spreading, causing the shoots to die and the whole plant to die. Control method: Eliminate and burn the dead branches (strain), strictly prohibit the external adjustment of the diseased bamboo as the mother bamboo for seedling afforestation, strengthen the tending management, and thoroughly remove the diseased dead branches of the 1-3 year old diseased bamboo or diseased bamboo in the forest before the bamboo shoots are released. , the end of the shoot, reduce the number of invasive sources of disease in the forest. 50% benzoimidazole No. 44 plus water 1000 times solution, or 50% Benzite wettable powder plus water 1000 times solution, or 1% Bordeaux mixture in 5-6 months when Hsinchu leaves, spray every 2 days or so continuously 2- 3 times, the effect is better. The arbuscular disease, also known as broom disease or Nestle disease, is a common disease on scattered bamboo and some cluster bamboo species such as light bamboo and bamboo. In the bamboo forest where the disease is serious, the branches of the diseased plants are covered with nested clusters of branches from the bottom to the top, resulting in the gradual decline of bamboo forest growth. The prevention and control measures are mainly to rationally manage the bamboo forest, and harvest the old bamboo on schedule to maintain proper density. Carry out the garden, soil compaction and fertilization to promote the occurrence of Hsinchu. If the diseased bamboo is cut off early or the diseased plant is cut off in time, the old diseased bamboo should be removed from the root. When planting forests, do not take the mother bamboo in the diseased bamboo forest, or use the sick mother bamboo to make forest.

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