Why does broccoli have yellow striped jumping beetle infestation? What should I do?

select high-yield, high-quality, and high-quality commodity resistant varieties; Alternating deep furrows and high planting with non-cruciferous vegetables to prevent water accumulation in the field after rain. Thoroughly removed after harvest. Plant debris, turn over the soil as soon as possible.

Timely watering, fertilization, and insect pest prevention have reduced various wounds. Agricultural streptomycin sulfate soluble powder 3000 4000 times, 47% Canon humidifying powder 800 1000 times, Praxacin 500 1000 times, 7 10 days at the beginning of the disease, 5 during the onset of the disease. It mainly harms leaves, stems, and petioles.

Bain's onset mostly begins in the outer lobes, initially starting with small spots in the shape of a water stain and progressing to brown to black spots. The spots are large under humid conditions, and the spots have black mold, and when there are many leaf spots, they become large spots. If there are many signs of leaf disease, it is easy to turn yellow.

1.Generally speaking, in the middle and late stages of growth, if there is continuous rainy weather or insufficient fertility, the disease will be severe. The stems and petioles are infected with disease, the spots are long spindle-shaped, dark brown with depressions, and there are whorls.

After soaking in 50 warm water for 20 to 30 minutes, immediately transfer to cold water to cool and dry after sowing. The weight of the seeds is to be mixed with water and then sown. Agricultural control measures such as "powdery mildew".

At the beginning of the disease, 50% puff servant humidification powder 1 200 times, 50% Nongli Ling humidification powder 1 500 times, 2% pesticide resistance agent 1 20 self-made 200 times, 50% gram bacteria humidification powder 400 times, 80% Xinwansheng humidification powder 800 times, or 75% bacteria.

Due to the high resistance, it is recommended to change the dressing at will, and a combination of fast-acting and expiration dates can be used. In many places, the use of organophosphorus pesticides such as poison cameras in vegetables is prohibited, so these agents are not recommended. At present, we recommend acetamide, pyrethrin pesticides, pyridine base, fullamine, thiamine, thiamine, bromide, etc., and typical formulas are mite pyridine, bifenthiamine, chloranththiamine, biphenyl.

Currently, many companies are developing biphenytestosterone, bifenfuramine granules, which are suitable for the prevention and application of yellow melody jumps.

Autumn is the season of high armor, and in cool and rainy years, the jumping of armor is serious. It rained heavily this fall, and what happened here and there was a lot of seriousness. The most harmful thing about the jumping armor to leafy vegetables is that if you gnaw on the leaves, there will be many small holes left in the leaves, and the quality of the leafy vegetables will decrease!

The jumping beetle is not a tall pest, with a body length of about centimeters. Very large migration capacity, very jumpy, so be aware of this when taking precautions. In addition, jumping armor has the highest mobility in cool weather (morning and evening), and often hides in the shade of the field during the high temperature at noon.

That's because these pests are very fond of broccoli, and they are very tasty, and when we encounter these pests, we only need to apply some pesticides.

Mainly because the surrounding temperature is relatively high, and there is no timely treatment of the weeds in the field, so this kind of pest and disease disaster will occur, at this time should be sprayed with a large number of pesticides, and there is to turn the soil.

The biggest possibility is that the fertilizer is not applied correctly and the ventilation is not done regularly, which can cause such a disaster. The correct way to deal with it is to ventilate the greenhouse, give more light, and let the plants photosynthesize, so that the plants can grow healthily.

Because these pests are here to harm the growth of broccoli, and they survive by eating the leaves of broccoli. You can spray broccoli with some pesticides to prevent these pests, and you can also carry out related fertilization to kill these pests.

It is necessary to remove all the surrounding weeds, and also use the correct way to fertilize, strengthen management, and improve the growth of mustard, so that it can be well prevented from insect pests.

First of all, when planting mustard greens, you can soak the seeds in water for 3 to 4 hours, and secondly, you can also put the seeds in the sun for about three hours, which can also play a sterilizing role. Finally, in the process of planting, a lot of fertilizer should be used in the field, and some pesticides should be evenly sprinkled, so that this disease will be prevented.

Some weeds should be cleaned up in time, and some drugs can be used to kill insects, and some lime water can also be checked in the land, and the density of planting must be paid attention to, and the field should be cleaned up in autumn and winter.

In fact, you can first let some of the surrounding weeds be cleaned up, and then the soil is cleaned first, and after spraying the relevant chemical agent trichlorfon and diluting it, it can have a certain control effect.

Yellow Melody Jumping Nail is also known by names such as Yellow Jumping Beetle, Vegetable Flea, Yellow Flea, etc. Not only cruciferous vegetables, but also soybeans, melons, eggplants and other crops are mainly harmed. For example, cabbage, cabbage, radish, rape, broccoli, peppers, tomatoes, eggplants, soybeans, cucumbers, etc.

Jumping beetle larvae mainly eat the roots of vegetables, adults mainly damage the leaves of residual vegetables, the leaves of cabbage may be eaten by adults when they are just or just unearthed, and sometimes they are eaten by beetles that beat cotyledons, resulting in seedlings that cannot survive, and the cabbage of the live broadcast is easy to germinate. The cabbage fields are relatively arid and cannot provide sufficient shelter and breeding places for the yellow band beetle, and the damage of the yellow band beetle is relatively light. The soil moisture is high, and the temperature is about 20 degrees, which is relatively harmful to cabbage.

Because this temperature is in line with the characteristics of spring and autumn, most of the loss of jumping beetles is relatively serious in autumn and spring.

After the beetle larvae hatch, they hide in the roots of the cabbage, bite the fibrous roots, gnaw off the root bark, the vegetable seedling roots are eaten by the beetles for a week and then wither and die, the leaves wither and do not lose their green color, and the larvae of the jumping beetle will pass about 11 or 16 days after hatching the beetle in a high humidity environment without harming the upper leaves on the ground. After being frightened, quickly hiding and escaping, beetles can overlap for generations in the same land, and 4 to 5 generations may occur in the North China Plain per year.

The jumping armor is soft and likes to eat small parts of the leaves, so the stunt damage is the most serious, often destroying the seedlings. Newly hatched larvae may strip the bark of fibrous roots, forming irregular striped scars, biting off fibrous roots, causing plant leaves to wither and yellow, rot and rot, and spread soft rot disease. Most of the larvae that sleep in the open make soil consolidation pupa in the soil at a depth of 3 7 cm.

Pupae about 2 mm long, oval, milky white, head hidden under prothorax, wings and feet up to size 5 compound joints, sparse brown bristles on the back of thorax. A pair of forks protrude at the end of the abdomen, and the forks are brown in color. Pupal time is 11-13 days.

It mainly harms crops such as soybeans, melons, and eggplants, and most of the losses of jumping beetles are relatively severe in autumn and spring.

This is actually a pest that can reduce the yield of cabbage, and it usually occurs in spring and autumn, because it is about the same time as it grows.

This pest is known as the yellow jumping beetle. Harm vegetable leaves. Nibble on leaves. Generally in March to April.

It mainly harms the roots of vegetables and the remaining leaves, which generally occurs in autumn and spring.

This pest will exist on a large scale, and it will also cause great damage to the leaves of Chinese cabbage, which generally occurs in spring and autumn.

This is because some insects bring it over, so there are such pests, which also have a lot of damage to plants.

Yellow wide striped jumping beetle is also called yellow wide striped vegetable jumping beetle, pseudo yellow striped jumping beetle, cabbage flea, soil flea, yellow flea, mainly harmful cabbage, rape and other cruciferous vegetables, yellow wide striped jumping beetle adults and larvae can be harmful from spring to autumn, with the seedling stage the most damaged. Yellow wide strip jumping nail control methods: 1. Eradicate weeds.

2. Deep ploughing of the soil before sowing to eliminate part of the pupae. 3. Phosphine octathion emulsifiable concentrate, sprayed in a large area, can control adult insects.

It is very likely that there is a lack of nutrients, too much watering, and then the roots of the plant rot, and it will be affected by beetle disaster. Less watering, less fertilization, and more ventilation can alleviate this situation.

It may be caused by the high temperature in the place where the broccoli grows, or it may be caused by its own lack of nutrients, and it can be sprayed with pesticides to kill the yellow broad-striped jumping beetle, or it can be booby-trapped by using a black light.