One of my red tree is sick,please ask someone who knows about it

Hawthorn 。。。。

Hawthorn

Apple genus of Rosaceae

Prefer cool and humid climate. Strong adaptability, cold-resistant, drought-resistant, soil requirements are not strict, suitable for the northern barren mountain wasteland development and planting.

Common pests and diseases and commonly used agents

Insecticides for the control of apricot, plum, hawthorn pests

Pesticides for the control of Korean ball firm mealybugs, Japanese ball firm mealybugs. There are mainly mineral oil emulsion, trichlorfon, mealybugs, diesel emulsion, stone sulfur, melt mealybugs, speed kill, kill phosphorus, speed mealybugs, thiazinone, pesticide lice, UCLA, and so on.

Pesticides for the control of almond bees. There are mainly good labor, Anminle, An green treasure, insect race death, Atoli, Alfate, Almethrin, Kungfu, deltamethrin, green Pepsi, enemy killed, high efficiency cypermethrin, BaoDe, Baxu chrysanthemum and so on.

Pesticides for the control of plum solid bee. Mainly there are phoxim, insect race death, enemy killed, Saidan, Green Pepsi, A peroxide, Atoli, Alfate, An green treasure, Kungfu, Misopropyl, high efficiency cypermethrin, BaoDe, good labor, AminoLe, Lexapro, and so on.

Pesticides for the control of pear small heartworm, hawthorn pink butterfly, hawthorn super small curly moth. Mainly there are fenitrothion, acephate, acephate, insect race death, an green treasure, alephate, atoli, enemy to kill, kungfu, mizoribe, rifolin, speed to kill butyl, high-efficiency cypermethrin, chlorpyrifos, chlorpyrifos fluroxypyr, bactrim, bactroban, fructuron, kill bell urethane, larvicarb No. 3, diflubenzuron, fluopicolide, flumethrin, and so on.

Pesticides for the prevention and control of small peach heartworm and small white heartworm. Mainly: ground with the pesticide phoxim, good labor, Anminle, chlorpyrifos farmland music, Lesben and so on. Tree pesticides azamethiphos, fenitrothion, Amino, good labor, chlorpyrifos, Lexapro, fructuron, diflubenzuron, fludioxonil, flufenuron, atoli, alpha-fat, speed kill butyl, alpha-methrin, chlorpyrifos, green treasure, green Pepsi, Kung Fu, Tennessee, hundred tree chrysanthemums, BaoDe, bugs SaiDe, enemy to die, annihilate, high efficiency chlorpyrifos, Laforine, Mifenphos, and so on.

Pesticides for the control of tea-winged bugs. Mainly malathion, insect race dead, atoli, alfate, enemy killed, a peroxide, an green treasure, cypermethrin, BaoDe, kungfu, green Pepsi, annihilation, high efficiency cypermethrin, speed killin and so on.

Pesticides to control hawthorn leaf mite. There are stone sulfur compound, mineral oil emulsion, mealybug spirit, oil emulsion, sulfur suspension, barium polysulfide, Apollo, Nisolan, agro-mite Dan, Bazofen, azoxystrobin, thiazoxystrobin, dicarboxamid, mite death net, speed mite ketone, sweeping mite net, pyridaben, cypermethrin, methomyl, tennecoctenol, flupropamid, mite that is dead, zithromax, avermectin, ayphthia, and so on.

Pesticides for the control of golden turtles. There are mainly:! Ground with the pesticide phoxim, diazinon, chlorpyrifos, good labor, Amino, lexapro, agricultural land and so on. Trees with pesticides phoxim, atoli, alfate, enemy killed, a peroxide, insect race death, cypermethrin, kill pyrethrum, an green treasure, green Pepsi, annihilation, Xing cotton treasure, extermination of Pekoe, BaoDe, and so on.

Pesticides for the control of leafhoppers. Mainly malathion, insect race death, atoli, alfate, bacitracin, Baoshu chrysanthemums, Baode, enemy to kill, alfate, an green treasure, cypermethrin, kungfu, green Pepsi, annihilation, high efficiency cypermethrin, mizoribe, speed kill ding, Lai Fook Ling, good labor, Aminle, Nongdilai, Laceben, and so on.

Pesticides for the control of pear webworm (pear armyworm). Mainly dichlorvos, malathion, propyl bromide phosphorus, Xilong, Kulong, fenitrothion, phoxim, Wanling, good labor, Aminle, Alfate, Amex, high efficiency cypermethrin, Green Pepsi, annihilation and so on.

Fungicides for the control of apricot, plum, hawthorn diseases

Pesticides for the control of blossom rot. There are Dafeng, Pudekin, Spray Fu Lu, Baojiaxin, Spray grams, YiBao, AnTaiSheng, Dasheng M-45, Puhain, Dasheng Fu, Pyrethrum, NongLiLing, Pyrimethanil, ShiJiaLe, SukhLing, Ethylmethionine, Polymyxin, NanoXin, Doxycycline, Baolian and so on.

Pesticides for the control of leaf spot disease. Mainly stone sulfur compound, Bordeaux liquid, Pudekin, Baojaxin, Antaisheng, Dafeng, Spray Fu Lu, Spray Gram, Yi Bao, Dasheng M-45, Dasheng Fu, Teha, Myclobutanil, Nano Xin, Jinlix and so on.

Pesticides against powdery mildew. Mainly stone sulfide, pigeonha, Jinlix, bromoxynil, powder rust Ning, Bailiton, propiconazole, trichlorfon, fenitrothion, aliconazole, Xin Sheng, Fuxing, Xian Sheng, Shigeige and so on.

Pesticides for the control of rheumatism. There are mainly gramicidin, pudekin, baojiaxin, wuningmycin, new phytomycin, agro-streptomycin, streptomycin sulfate, bo medical, fungicide, chlorobromo isocyanuric acid and so on.

Pesticides for the control of rust. Mainly stone sulfide, Jinlix, powder rust Ning, Bailiton, propiconazole, trichlorfon, feniconazole, aliconazole, Xin Sheng, Fuxing, Xian Sheng and so on.

Pesticides for the prevention and control of anthracnose, apricot boil, apricot fruit red spot disease. There are mainly Pudekin, Bulgaxin, Sprayfulu, Dashengfu, Dafeng, Antaisheng, Dai M-45, Sprayk, YiBao, Teha, carbendazim, NanoXin, Thiophanate-methyl, Metribuzin, Jinlix, Anthracnose Fumex, ShiBaoKong, Benomyl, Shigeo and so on.

Pesticides for the control of rot, dry rot, neck rot. Mainly stone sulfur compound, rot must be clear, internal treatment of the element, wuyimycin, antibiotic S-921, bacterial poison clear, rot enemy, flat rot spirit, 843 rehabilitation agent, fungi LiMei, JinLiShi, fruit KangBao and so on.

Pesticides for the control of round spot root rot. There are mainly carbendazim, diclofenac ammonium, mycotoxin, fungicide excellent, Jinlix and so on.

Pruning maintenance

In a long period of time, hawthorn tree management and shaping and pruning are relatively sloppy, and more do not pay attention to the shape of the tree, so there is a more common tree structure disorders, baldness in the inner chamber, surface results, lower yield and other undesirable phenomena.

Hawthorn shaping pruning, than apple, pear tree pruning to be slightly more complex. In the process of shaping and pruning, it should be in line with its growth and fruiting habit and natural environment conditions. If pruning is heavy cutting and more cutting, it will be shaped late, the result will be late and the early yield will not be high; if it is slow to release and not to cut, it will be disorganized, the result may be early, but the yield is not high, and the late period is not fruitful, and it is not a reasonable structure of the tree body, nor the distribution of the suitable branch group.

The pruning principle of hawthorn tree should be flexible according to the type and variety characteristics, environmental conditions, fertilizer and water management level, tree potential, branching potential characteristics, etc., and can't be uniform.

Hawthorn young tree shaping, the trunk should be low, the backbone branch opening angle should be big, in order to make full use of light and heat resources and space; Reasonable use of auxiliary branches, keep the tree potential of the median robust, good ventilation and light transmission conditions in the tree crown.

When hawthorn young tree grows too strong, the formation of flower buds is less, and the fruit rate is also low; when the tree is strong, the flower buds are more, but the quality is poor, the fruit rate is low, and the fruit drop is serious; only by keeping the mediocre tree potential, can we get the successive years of abundant production.

The hawthorn tree's big and small year is not obvious, but if pruning is too heavy, the nutrient growth is too prosperous, the storage nutrient is very little, or the number of fruits is too much, there may also appear big and small year fruit phenomenon.

The nutritional growth of young hawthorn trees is generally more vigorous than that of apple trees and pear trees. If the tree shape is forced when pruning, when the pruning amount is too heavy,