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Coptis chinensis cultivation techniques and per-mu returns, plus common pest and disease control methods
Abstract Selecting a good forest plot: choose a forest plot with heavy shade. Preparing the shade structure: shade density of 70%-80%. Land preparation and bed making: ditch width 23cm, depth 10cm. Transplanting: select 2-year-old seedlings with more than 12 leaves for transplanting. Pest and disease control: use lime sulfur mixture to control powdery mildew, and for pests such as white grubs
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Experience Sharing on Integrated Pest Management for Grapes
1 Dormant period control techniques (November to March). During this period, the pests that were rampant and causing damage stop their activity, and various pests enter the overwintering state in different insect forms and ways, and their overwintering sites are relatively hidden. 1.1 Clearing the orchard. After the grapes shed their leaves, promptly clear away the fallen leaves, dead branches and weeds,
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Control Methods and Technical Key Points for Litchi Downy Blight
Litchi downy blight can harm litchi from young fruit to ripe fruit, fruit stalks, and the small bearing branches; when humidity is high, leaves also develop the disease. Symptoms: local chlorosis on leaves, with white mold on the underside, the fruiting bodies of the pathogen, but usually at the peak period of this disease, the leaves have already aged, so leaf damage in the field is rarely seen.
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Control Methods for Downy Mildew in Isatis indigotica (Dyer's Woad) Cultivation
Symptoms: On diseased leaves, yellowish-white lesions with rather indistinct edges appear on the leaf surface, gradually enlarge, and, constrained by the leaf veins, become polygonal or irregular in shape. On the corresponding underside grows a layer of grayish-white downy mildew-like substance, namely the pathogen's sporangiophores and sporangia exposed outside the host body.
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Control Techniques for Snake Eye Disease in Strawberry Cultivation
As autumn arrives, temperatures drop, rainfall increases, and light is insufficient, snake eye disease begins to occur frequently in some strawberry-producing areas. In some fields, the incidence rate reaches over 50%, seriously affecting strawberry growth. The main occurrence and control techniques are introduced as follows: 1. Disease
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What are the control methods for grape leaf blight?
Symptoms: Brown spot disease is caused by infection with the fungus Pseudocercospora vitis, and mainly damages grape leaves. In the early stage of infection, the infection sites appear as light brown, irregular angular spots. The lesions gradually expand, reaching a diameter of up to 1 cm. The lesions change from light brown to brown, and then to reddish brown, with a
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How to control bagworm pests in bayberry cultivation
The male and female adults of the bayberry bagworm differ greatly in morphology. The male adult is 15-20 mm long with a wingspan of 30-35 mm, dark brown, with 3-5 semi-transparent markings near the outer margin of the forewings, and brown hindwings. The female adult is wingless, maggot-shaped, about 26 mm long, with a dirty white body,
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How to prevent litchi fruit cracking? Cultivation and control methods
1. Root pruning and girdling In the late stage of fruit development, the method of root pruning and girdling the main branches is used to weaken root activity, which is very effective in reducing fruit cracking. However, the measures must be timely and appropriate; excessive control of root growth is detrimental to normal fruit development and to the rapid recovery of tree vigor after harvest.
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How to prevent and control gray leaf spot when growing Isatis indigotica
Symptoms: On both sides of the leaves of affected Isatis indigotica, round lesions form, 2-6 cm in diameter, slightly sunken, grayish-white in the center, with brown edges. In the later stage, the lesions become thin and brittle, crack or perforate; when moist, a brown mold-like growth appears on them, which consists of the pathogen's conidiophores and conidia. Old
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Control Methods for Green Mold Disease in Ganoderma lucidum Cultivation
Green mold (Trichoderma viride Pers. ex Fr.) belongs to the subphylum Deuteromycotina, class Hyphomycetes, order Moniliales, family Moniliaceae, genus Trichoderma. 1. Morphological characteristics: The hyphae are slender, colorless, septate, and much branched. Conidiophores arise from lateral branches of the hyphae, opposite or alternate, generally with
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