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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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Causes and Control Methods of Citrus Sunburn
Citrus sunburn is a common physiological disease in hot seasons, mainly affecting leaves, fruit and bark. The occurrence of this disease is mainly caused by exposure to high temperatures and scorching sun. At noon and in the afternoon during hot weather, the local temperature of orange trees exposed to direct sunlight rises sharply
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What to Do About Low Fruit Set in Plums? Cause Analysis and Methods to Improve It
1. Regulating tree vigor For excessively vigorous trees, promptly remove buds and prune upright branches, and promptly open up the branch angles; alternatively, in autumn or spring apply 3-5 g of 15% paclobutrazol per tree, or spray 150-200 times diluted paclobutrazol or PBO after petal fall. For trees that are too weak, apply base fertilizer after harvest, and promptly apply topdressing and foliar fertilizer during the growing season.
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Four common grafting methods for jujube tree cultivation
1) Single-bud bark grafting: From May to September, when the rootstock begins to slip bark, grafting can be done every day. Choose sour jujube rootstock under 5 years old with a diameter of about 1.5 cm; use lignified, disease-free and pest-free growing shoots as scions. 2) Subcutaneous grafting: From spring when the rootstock
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What to Do If Pear Trees Bloom Out of Season? Causes and Control Methods Explained
In the sand pear (Pyrus pyrifolia) production areas south of the Huai River and in the Yangtze River basin, every autumn a number of pear orchards show the phenomenon of out-of-season blooming. Any pear tree that has bloomed out of season will inevitably have a reduced yield the following year. Pear growers keep asking: why do pear trees bloom out of season? How can it be effectively controlled? The author
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A Detailed Explanation of the Causes of Empty Chestnuts and Their Prevention and Control Methods
Chestnut, also known as li, chestnut, chestnut seed, fengla, is a plant of the genus Castanea in the family Fagaceae, native to China, distributed in Vietnam, Taiwan, China and mainland China, growing in areas at an altitude of 370-2800 m, mostly found in mountainous areas, and has been widely cultivated artificially. Chestnuts are nutritious
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Causes of Black Bottom in Persimmons and Control Methods
Persimmon is a berry-type fruit of the Ebenaceae family. The ripening season is around October. The fruits come in many shapes, such as spherical, oblate, nearly conical, and square, etc. Different cultivars range in color from light orange-yellow to deep orange-red, in size from 2 cm to 10 cm, and in weight from 100 g
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Causes and Control Methods of Bacterial Leaf Spot in Zinnia
Zinnia generally refers to Zinnia elegans, Zinnia elegans (scientific name: Zinnia elegans Jacq.): annual herb. Stem erect, 30-100 cm tall, covered with strigose or long hirsute hairs. Leaves broadly ovate or oblong-elliptic, rough on both surfaces, densely short-strigose beneath, with three basal veins
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Causes and Control Methods of Buttoning and Yellowing in Broccoli
Broccoli is an annual or biennial herbaceous plant native to the eastern Mediterranean coastal region. It is cultivated on a small scale in China, mainly for use in Western cuisine. Broccoli is rich in nutrients, containing protein, sugar, fat, vitamins and carotene, and ranks first among vegetables of its kind in nutritional content.
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Causes and Control Methods of Deformed Fruit in Zucchini
Zucchini is grown in Shandong, Shanxi, Henan, Hebei and other places, and is a type of pumpkin. Also known as eggplant melon, bear (male) melon, white melon, small melon, foreign melon, horn melon, xun melon, etc. Native to India, it is grown in both southern and northern China. Zucchini has the effects of clearing heat and promoting diuresis
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