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Scale insects are one of the main pests of apricot trees and have a great impact on tree vigor and yield. The main species of damage are mulberry white scale, apricot scale and Korean ball scale, with mulberry white scale, apricot scale is the main harm, although the recent temperature has further risen, the wintering scale scale insects have begun to move the harm, seize the favorable opportunity to carry out the control, can receive twice the result with half the effort. Its specific prevention and control technologies are as follows:
1. After the apricot tree germinates in spring, use 40% speed culling 500-700 times liquid plus tree protection general spray for tree body spray, which can also treat a variety of pests;
2. In the female expansion period of scale insects and the peak hatching period of nymphs, biological pesticides should be used for prevention and control, and chemical broad-spectrum insecticides should be used as little or as little as possible, so as to reduce the killing of natural enemies such as ladybugs, parasitic wasps, lacewings, etc., and make full use of the control ability of natural natural enemies;
3. Choose to spray Kao No. 3 solution before flowering to promote flower and fruit, and choose matrine or 35% endosulfan to add 800 times of new high-lipid film solution after flowering, which has multiple effects of enhancing tree potential, alleviating drought, preventing frost damage, improving quality and increasing yield. If it is serious, pesticides such as cypermethrin should be added. Due to the long damage period of scale insects, the number of medication should be increased, at least 4 times.
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It should be a tree honey worm, spray fungicidal and insecticidal drugs to try.
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1. Why do you be blind and why the apricot tree suddenly withered?
2. The solution to the sudden withering of apricot trees.
3. The cause of the death of apricot trees.
4. What is the disease of apricot tree wilting?
1.The first is that the eggplant stool is caused by too strong light, especially if it has been grown in a cool environment, and then suddenly moved to strong light, it will cause sunburn and wilt of the leaves.
2.The second possibility is that it is watered frequently, which causes the roots of the plant to be waterlogged for a long time, which will make the plant grow poorly.
3.Thirdly, it may be because too much fertilizer has been applied to it, causing the roots to wither and rot.
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Apricot brown rot Apricot brown rot mainly damages fruits, from young fruits to fruit ripening, and also damages flowers and leaves. At the beginning of the disease, round brown lesions appear on the surface of the fruit, which quickly expand, soften and rot. In the later stage, the surface of the lesion appeared in the form of velvety granules, the color was yellow-brown, and the diseased fruit mostly fell off in the early stage.
The specific prevention and control methods are as follows:
1. Reasonable pruning, timely summer pruning, so that the orchard is ventilated and light, 2. Clean up and burn diseased fruits and fallen leaves in winter to eliminate the source of disease.
3. Before bud germination, you can spray 1:1:100 Bordeaux liquid, etc., after falling flowers, you need to spray 80% mancozeb 800 times, etc., and then spray 70% methyl tobuzine 600 800 times or 75% chlorothalonil wettable powder 500 600 times or 50% carbendazim wettable powder 600 times every 10-14 days.
Apricot neoplasia This disease can damage the flowers and fruits, shoots and leaves of apricot trees. Usually the disease occurs quietly or later when the flowers fall and the new shoots grow more than 15 cm. The specific symptoms are that the elongation of the affected shoots is slow, at first dark red, and then turns yellow-green, and there are small spots with yellow-brown slight protrusions on them, and the diseased shoots are easy to dry up, and the fruits on them are mostly shriveled and disoriented.
Prevention and control methods: When new shoots or leaves begin to show symptoms, they should be cut off in time and burned in a concentrated manner to eliminate the source of disease. In this way, for 2-3 consecutive years, the disease can be basically controlled.
Apricot bacterial perforation disease This disease mainly damages leaves, but also affects fruits and shoots. The symptoms of the affected leaves are water-stained lesions at the beginning, and then gradually expand into lesions about 2 mm in diameter, which are round or irregular, and when the diseased and dead tissues begin to dry up and fall off, perforations will be formed. The specific prevention and control are as follows:
1. Apply more organic fertilizer and prune reasonably to ventilate the orchard.
2. Combined with winter pruning, prune diseased and dead branches on trees.
3. Before germination, the whole tree needs to be sprayed with 3-5 Baumé stone sulfur mixture and other agents, which is conducive to eliminating the source of overwintering disease; In the growing season, zinc sulfate lime solution, or 65% zeb 500 times, etc., should be sprayed every 10 days or so.
Almond bee larvae infest apricot fruit before ripening, causing early fall. The prevention and control methods are as follows:
1. Pick up the fallen fruit in time and bury it deeply;
During the oviposition stage of the monthly larvae, 2500 times deltamethrin bromide or inulinol is sprayed.
Apricot weevils eat young shoots and flower buds from April to June, and lay eggs after flowering, harming fruits. The prevention and control methods are as follows:
1. Artificial capture of adults during the flowering period;
2. Pick up the fallen fruit diligently and destroy it in time;
3. It can spray 200 times of 50% wettable DDT for prevention and control.
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1. What is the reason for the apricot tree wilting?
2. What to do if the apricot tree wilts.
3. The apricot tree bears fruit and the leaves wilt.
4. The leaves of the apricot tree wilted after transplanting.
1.Apricot trees may be due to a lack of light, it likes light, if there is not enough light, it will cause wilting due to lack of photosynthesis.
2.When cultivating, it is necessary to choose a place with good light to ensure that there is enough light in the growing season.
3.It may also be a watering problem, afraid of waterlogging and drought, pay attention to the water problem.
4.If the soil is dry, water and replenish the water as soon as possible, and drain the stagnant water in time during the rainy season to avoid waterlogging.
5.It may also be a lack of nutrients, and it is recommended to top dressing in time during the peak growing season.
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Summary. Apricot trees are more resistant to drought and basically do not need to pay taxes when growing, but if they are not watered in time during severe drought, they will cause serious flower and fruit drops. In addition, in order to ensure the yield of apricot trees, fertilizer and water management is indispensable, especially for phosphorus, potassium and other trace elements are essential, once there is a lack of fertilizer, it will lead to a lack of nutrients and fertilizer of the plant, the tree is weak, can not flower and bear fruit normally, and there are many flower buds but less fruit set.
Apricot trees are drought resistant and basically do not need to pay taxes when growing, but if they are not watered in time during severe drought, they will cause serious flower and fruit drops. In addition, in order to ensure the yield of apricot trees, fertilizer and water management is indispensable, especially for phosphorus, potassium and other trace elements, once there is a lack of fertilizer, macro will lead to plant nutrition and fertilizer deficiency, tree weakness, can not flower and fruit normally, there are more flower buds but less fruit set.
Apricot trees are drought resistant and basically do not need to pay taxes when growing, but if they are not watered in time during severe drought, they will cause serious flower and fruit drops. In addition, in order to ensure the yield of apricot trees, fertilizer and water management is indispensable, especially for phosphorus, potassium and other trace elements, once there is a lack of fertilizer, macro will lead to plant nutrition and fertilizer deficiency, tree weakness, can not flower and fruit normally, there are more flower buds but less fruit set.
The apricot tree is now bearing fruit, and the insects will fall a lot, so please ask the teacher how to solve it.
If the situation is not serious, you can make your own insecticidal solution to spray, such as soaking in tobacco and water, and mixing water with wine, this method can only target small areas of insect pests. 2.If the number of greasy insects is relatively large, you can spray the drug to **, mix deltamethrin and killing auspicious branches and Zheng mites according to the proportion, and use it to spray greasy insects, and spray it again after half a month.
3.It can also be applied with dimethoate milk and monocrotophos mixed with water.
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The apricot tree is dying, is there any salvation? What measures are used? Please advise.
Hello dear, the apricot tree should be shaded when the light is strong; or due to excessive watering, watering should be stopped immediately; Move the plants to a dry and ventilated place and grind them for maintenance. The possible causes of apricot tree death are: frost damage, scale insect damage, watered laundry detergent solution, fertilizer damage (excessive fertilization, too close), herbicide damage.
Water and fertilizer management of apricot trees: It is too early to fertilize the root system of apricot trees in early spring, and the basal fertilizer should be applied when the soil is not frozen before winter, which is conducive to the early absorption of the root system of the disturbed hand. The types of base fertilizer should be mainly organic fertilizers, such as manure, chicken manure, etc.
The amount of fertilizer applied should be based on the size and growth of the tree.
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