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What are the causes of melon fruit abortion and the control methods?
1. Causes of fruit abortion 1. Temperature too high or too low. When the temperature is too high, photosynthetic accumulation is low and respiration consumption is high, which easily causes the vines to grow excessively, leading to malnutrition and fruit abortion; when the temperature is too low, the root absorption capacity weakens, affecting photosynthesis and leading to nutrient deficiency and fruit abortion. 2. Soil too dry
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How to Prevent and Control Fig Anthracnose? A Detailed Guide to Practical Methods
This disease is an important disease on fig fruit, and because of its damage, large numbers of fruits often rot. [Damage symptoms] It mainly damages fruit, and can also infect branches. After the fruit is infected, round, slightly sunken, brown patches appear on the fruit surface, and then concentric
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Control Methods for Phytophthora Disease in Fig Cultivation
Fig Phytophthora disease is an important disease of figs in suburban areas in recent years, occurring commonly and causing serious damage. In years when the disease is epidemic, 80%-90% of the fruit can be affected and rot, and large numbers of branches and leaves wither. [Symptoms of damage] The disease mainly damages fruit, new shoots and leaves, and can also infect buds.
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Key Field Management Techniques for Fig Cultivation
(1) Intertillage and weed control: In young orchards, intertillage and weed control should be carried out once each in spring, summer and winter, and winter intertillage should be combined with earthing up to prevent freezing. In mature orchards, intertillage should be done during the dormant period, and in summer the ground should be covered with grass, which can both suppress weed growth and prevent drought and preserve soil moisture. If weeds still grow, they can
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Key Technical Points for the Prevention and Control of Apple Pests and Diseases in the Mid-to-Late Stage
The young fruit stage is the peak infection period of early defoliation disease, the initial stage of branch ring rot, and also the peak damage period of aphids, leaf mites and scale insects. Therefore, doing a good job in the prevention and control of apple pests and diseases during the young fruit stage is crucial for strengthening tree vigor, improving fruit quality and achieving increased
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What are the control methods for calcium deficiency in apple trees?
Symptoms of calcium deficiency in apple trees: bitter pit formed in the early stage, with a spongy texture under the skin but without rotting. The red spots and black spots formed before harvest should be distinguished as to whether they are an infectious disease or a physiological disorder. The red spots and black spots formed by infectious diseases rapidly expand and penetrate deep into the flesh and
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Control Methods for Anthracnose in Mango Cultivation
1. Damage symptoms: It mainly damages mango flowers, fruits and young shoots. After young leaves are infected, many round brown spots appear, surrounded by yellow halos, and gradually expand into round, polygonal or irregular brown lesions, which later rupture and perforate. The wounds on leaves and young fruits caused by gall midges, leafhoppers and other pests are also easily infected by this disease.
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How to prevent and control weevil infestation when growing mangoes?
1. The mango leaf-cutting weevil is widely distributed. Adults feed on young mango leaves, causing the leaves to dry up; or the female lays eggs on young leaves and bites the young leaves off at the base, affecting plant growth. Control methods: ① During the growth period of young shoots, pick up the bitten
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Control Methods and Technical Key Points for Mango Shoot Blight and Gummosis
Mango shoot blight and gummosis mainly damages branches and the main trunk, causing dieback, but it can also harm seedlings and fruit. When seedlings are affected, dark brown necrotic spots usually appear from the bud graft point or wounds, rapidly spreading upward and downward, causing the scion to die. When the main trunk or branches are affected, the cortex
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Control methods for yellowing disease in citrus cultivation
In many places in our province, citrus yellowing disease occurs commonly in citrus orchards, causing weakened tree vigor, reduced yield, degraded quality, and premature tree decline. Some fruit growers believe it is all citrus greening disease and adopt the practice of cutting down trees, causing unnecessary production losses. In fact, yellowing disease, as long as it is not
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