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1. Spraying agents: If the jujube tree has insects, you can spray appropriate chemicals for control.
2. Biological control: In the flowering and fertile season of jujube trees, if you want to avoid drugs and drug residues, protect natural enemies and pollinators, you can release red-eyed bees to solve the problem of insect pests. Generally, 3000-5000 pine red-eyed bees can be released per plant, and the parasitic rate is about 85%.
3. Clean up the diseased fruits: After the fruit of the jujube tree is infected, if you want to prevent the spread of pests, you must remove the infected fruit on the jujube tree in time, and then destroy it from the orchard.
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There are a lot of insects on the jujube tree, and one of the most feared by people is the spicy seed.
This is a kind of insect that many people know, its scientific name is the brown edge green thorn moth, it is green or light green all over, and has regular hairs on its body. When in danger, it releases its fine hairs and venom, which is acidic and causes discomfort after being stung.
Precautions for jujube tree planting.
The requirements of jujube trees for soil are to have strong water and fertilizer retention capacity, which can effectively avoid the loss of water and fertilizer, and can be mixed with humus + sand + garden soil when formulating.
Light: Jujube trees are very fond of sunlight, and most fruit trees need longer sunshine, so usually put it in the sun as much as possible, and properly shade it at noon in summer.
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The common diseases of jujube trees mainly include: jujube madness, jujube rust, jujube brown spot and jujube anthracnose.
1. Jujube madness. Prevention and control methods: Regularly remove diseased plants and branches in the orchard, and take them out of the orchard for burning or burial. Spraying 1605 or dimethoate 1000 times in June and July can also effectively control leafhoppers.
2. Jujube rust. Jujube rust only harms the leaves, and at the beginning of the disease, the back of the leaves is scattered with small pale green spots, which gradually turn into light gray-brown. Prevention and control methods:
Choose a healthy and disease-resistant jujube tree variety. Prune and prune the leaves regularly to keep the jujube orchard and canopy well ventilated and light-transmitting. In early July and mid-to-late August, spray 180 times the amount of Bordeaux solution for control.
3. Jujube brown spot disease. Prevention and control methods: do a good job in clearing the garden, remove the dead fruits and bury them deeply, and carefully prune the dead branches and diseased and insect branches of the jujube orchards or plants with serious diseases, so as to reduce the pathogen.
Keep the jujube orchard ventilated and light-transmitting, reduce the air humidity of the jujube orchard, and reduce the incidence of disease. 5-10 days before germination, spray 100 times of 40{bf} formarsine wettable powder, or 100 times of 50be stone sulfur mixture pentachlorophenol solution to eradicate overwintering bacteria on the tree.
4. Jujube anthracnose.
Prevention and control methods: reduce the number of bacterial sources and reduce the source of disease. Remove jujube hanging, fallen leaves, and diseased fruits under the tree in time.
Try not to use the Robinia locust shelterbelt and use other tree species instead. Focus on the prevention and control of stinging and sucking mouthparts pests such as bugs and leafhoppers. In late June, a fungicide was used to eliminate the source of the disease on the tree.
Common pests that harm jujube trees include jujube zigzag, also known as jujube inchworm, blind bug, peach heartworm, and jujube gall mosquito.
Prevention and control measures. In agricultural control, the adults of Jujube inchworm have phototaxis, and during the period of unearthed featherement, black light is used to trap and kill. Biological control, spraying of pesticides.
Chemical control. In the pest emergence period, sprinkle about three kilograms of phosphine granules per mu on the surface, focusing on the surroundings of the tree tray, and then use a small rotary tiller to loosen the soil shallowly, so that the adults will be killed when they are unearthed.
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There are many common insect pests of jujube trees, and the common ones in the northern region are red spiders, peach heartworms, jujube inchworms, bare-shouldered star beetles, turtle wax scale insects, etc. Their living habits are both the same and different, so the control period and method should also vary from insect to insect. However, comprehensive prevention and control is advocated.
One, red spiders.
Second, the peach heartworm.
The peach heartworm mainly harms the fruit of the jujube tree, which eats the pulp inside the fruit, causes the fruit to fall early in the young fruit stage, and causes the fruit to be inedible in the mature stage, which affects the yield and quality of the jujube tree. In view of the habit that its eggs are hidden in the ground, the larvae are generally monthly, biting and eating the fruit of the jujube tree, and burrowing into the inside of the fruit, the following two methods are generally adopted for prevention and control.
In spring, turn the soil under the tree and sprinkle medicine (500g of 50% phosphine emulsifiable concentrate mixed with 20kg of fine soil) to kill insect eggs.
Three, jujube inchworm.
Jujube inchworm is generally a generation a year, the pupa hides in the soil under the tree or under the dead branches and weeds, begins to emerge in March, begins to lay eggs and hatch in April, and the larvae to adults are harmful to the buds, buds and young fruits of the jujube tree. If it is not prevented in time, it will bring greater risks to practitioners, and the general methods are:
Turn over the soil under the tree, collect insect pupae, and burn them intensively.
Fourth, turtle wax scale insects, bare-shouldered star beetles. These two pests only occur sporadically in my jujube orchard, and can be killed by general pyrethroid drugs.
In addition, pests have natural enemies, so biological control is also very important, but because its effect is not obvious and the effect is slow, it is rarely used.
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Abstract 1Use red-eyed bees or microbial pesticides to control: in jujube armyworm.
In the peak period of the second and third generations of egg fall, each jujube tree releases 3000-5000 red-eyed bees, and the egg parasitic wasps can reach about 75%, and the crown of the larvae occurs 200 times with microbial pesticides such as green worm fungus and bacillus borericide, and the control effect is 70-90%.
2.Chemical pesticide control: If necessary, that is, when the insect population density is particularly large, when the buds of the jujube tree are 3 cm and 5-8 cm long, they can be slapped on the tree once 800-1000 times of 80% dichlorvos or 2000 times of 75% phoxanthion or 4000 times of deltamethrin or 1000 times of 25% insecticidal star, etc., which can effectively control the damage.
How to treat jujube insects on jujube trees.
1.Use red-eyed bees or microbial pesticides to control: in jujube armyworm.
In the peak period of the second and third generations of egg fall, each jujube tree releases 3000-5000 red-eyed bees, and the egg parasitic wasps can reach about 75%, and the crown of the larvae occurs 200 times with microbial pesticides such as green worm fungus and bacillus borericide, and the control effect is 70-90%. 2.Chemical pesticide control:
If necessary, that is, when the insect population density is particularly large, when the buds of the jujube tree are 3 cm and 5-8 cm long, they can be slapped on the tree once 80% dichlorvos 800-1000 times liquid or 75% phoxanthrine 2000 times liquid or deltamethrin 4000 times liquid or 25% insecticidal star 1000 times solution, etc., which can effectively control the damage.
Why are there worms in dates?
It looks like the jujube is intact, but in fact, the jujube is broken in the heart.
How to prevent it? The insects in the jujube are when the jujube tree blooms, the insects lay eggs in the stamens, and then stay in the jujube after fruiting, because there is water inside the jujube, and after the growth conditions are met, the eggs will hatch into worms.
Hello, may I ask if the dates are dried or from the trees.
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Summary. Pests that are harmful to jujube trees. The common ones are jujube zigzag, also known as jujube inchworms.
Control measures: 1. Agricultural control, the adults of Jujube inchworm have phototaxis, and during the unearthed feathering period, black light is used to trap and kill.
2. Biological control. When spraying pesticides, try to choose pesticides with high efficiency and low toxicity, and have less damage to natural enemies of pests, and use natural enemies for prevention and control. The natural enemies of the jujube inchworm are colorful and wide-fronted parasitic flies, silkworm chasing parasitic flies, swollen tarsal parasitic bees, etc.
2. Chemical prevention and control. In the pest feathering period, sprinkle about three kilograms of phoxanthion granules per mu on the surface, focusing on the surrounding of the tree disk, and then use a small rotary tiller to loosen the soil shallowly, so that the adults will be killed when they are unearthed, and can also be sprayed under the tree in the evening of the pest feathering period with 1000 times of 50% phoxanthrine + 1000 times cyhalothrin + silicone pesticide synergist.
Hope my answer can help you!
How to treat jujube insects on jujube trees.
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Pests that are harmful to jujube trees. The common jujube zigzag steps are also called jujube inchworm control measures: 1. Agricultural control, the adult of jujube inchworm has phototaxis, and during the period of unearthing feather brigade, black light is used to trap and kill.
2. Biological control. When spraying pesticides, try to choose pesticides with high efficiency and low toxicity, and have less damage to natural enemies of pests, and use natural enemies for prevention and control. The natural enemies of the jujube inchworm are colorful and wide-fronted parasitic flies, silkworm chasing parasitic flies, swollen tarsal parasitic bees, etc.
2. Chemical prevention and control. Master in the pest feathering period, sprinkle about three kilograms of phosphine granules per mu on the surface, focus on the surrounding of the tree disk, and then use a small rotary tillage jujube poor machine to loosen the soil, so that the adults will be killed when they are unearthed, and can also be sprayed under the tree in the evening of the pest feathering period 50% phosphine + 1000 times cyhalothrin rock demolition bureau + silicone pesticide synergist. Hope my answer can help you!
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