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Control Methods for Root-Knot Nematode Disease in Hami Melon
Root-knot nematode disease is an important disease of Hami melon, occurring and distributed in some areas. It can develop both in protected cultivation and in open fields, with more severe occurrence in autumn. Infection at the seedling stage has a great impact on production. After the disease develops, the rate of diseased plants often reaches more than 60%, significantly affecting Hami melon production. Symptoms mainly
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Control Methods for Fusarium Fruit Rot of Hami Melon
Fusarium fruit rot of Hami melon, also known as white mold disease, is an important disease on Hami melon, mostly occurring during storage and transport, and Hami melon and honeydew melon are susceptible to damage. The symptoms mainly affect the fruit. Initially, round, slightly sunken, light brown lesions appear at the fruit stalk, 10-30mm in size, then the surrounding area becomes
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How to prevent and control bacterial leaf spot in cantaloupe cultivation
Bacterial leaf spot is an important disease of cantaloupe, and it can occur in both protected and open-field cultivation. In severely affected fields or greenhouses, the diseased plant rate can reach over 80%, and severely diseased plants die from the disease, significantly affecting production. Symptoms mainly affect the leaves, and in severe cases also infect the stems, vines, and fruits. Leaves
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Control Methods and Technical Key Points for Root Rot Disease in Papaya Seedlings
Papaya root rot disease is also called papaya root rot. Symptoms: The disease mainly affects the root collar and roots, and seedlings during the nursery period and shortly after planting are more susceptible. It is especially likely when the groundwater level in the nursery site and cultivation site is relatively high or poor drainage causes waterlogging, and when the soil is highly clayey. The plant
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How to prevent and control papaya mosaic virus disease when growing papaya?
Papaya mosaic virus disease is a devastating disease commonly occurring in papaya-growing areas in recent years. The plant becomes diseased soon after being planted, mottled yellow flower spots appear on the leaves, the new leaves are densely bunched and tightly clustered, rapidly lose their green color and become hard and brittle, breaking easily; afterward no new roots form and no new leaves grow
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Key Technical Points for Pest and Disease Control During the Cotton Seedling Stage
Due to the influence of ecological conditions, meteorological factors and so on, pests and diseases during the cotton seedling stage are characterized by many species, rapid development and severe damage, often causing missing seedlings and broken rows in cotton fields, and in severe cases, large areas of death. The main diseases that occur include black root rot, red rot, damping-off, anthracnose
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Characteristics and Control Methods of Cotton Rhizoctonia Damping-Off
Characteristics of cotton damping-off: After the cotton seedlings emerge, they are damaged; in the early stage, yellow-brown lesions appear at the base near the soil surface, and the lesions gradually expand to surround the entire base, showing obvious constriction; the diseased seedlings wilt, lodge, and die. After the cotyledons are damaged, yellow-brown irregular lesions mostly appear in the middle of the cotyledons
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Key Points for Disinfection and Weed Control in Cotton Seedling Raising
Recently, a farmer from Shuqiao Village, Wuluo Town, Yunmeng County, Hubei Province, called to ask about pesticide use on cotton. Here, in response to two issues farmers care about in cotton seedling raising, I will discuss the precautions for pesticide application for prevention and control. First, does the seedbed soil still need to be disinfected when raising seedlings from coated cotton seed?
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Watch out for and control cotton boll rot in hot and humid weather
Currently cotton is at the flowering and boll stage and will soon enter the boll-opening stage. This is the vigorous period of cotton reproductive growth, the critical period for the growth of midsummer bolls and yield formation, and also the critical period for controlling boll rot. This year, rainfall from late July to early August was abnormally higher than usual, so
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Control methods for the third-generation cotton bollworm in cotton
1. Manual egg collection and pest elimination. Since most third-generation cotton bollworms are found in the flowers and bolls of insect-resistant cotton, for insect-resistant cotton fields, withered flowers should be removed promptly and pests eliminated manually. For other cotton fields, manual egg collection and pest elimination can be carried out along with pruning and removal of side branches, and the remaining branches and withered leaves should be taken out of the field
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