What are the main pests and diseases of carob? What kind of medicine is used to fight the insect inf

It is a bacterial disease, mainly affecting leaves, but also stems, pods and seeds. The leaves are infected with water-stained small dots at first, and then gradually expand into irregular brown lesions, and in severe cases, the diseased leaves turn yellow and fall off. The stem is infected, and the lesions are reddish-brown long concave, and the pods are infected, and they are water-stained small spots at first.

Slightly concave, then reddish-brown, with spillage of fungal fluid. The disease is prone to occur in summer when there is high temperature and humidity. Prevention method:

Select and retain the seeds without disease, and the seeds are dressed with 50% of their weight Fumei double fungicide; Keep ventilation and light between plants; At the beginning of the disease, spray 300 times of 14% copper loaminate and 300-400 times of 72% agricultural streptomyces sulfate capacitive powder. It is a fungal disease, the whole plant of the susceptible plant is wilted, and the base and root of the stem of the diseased plant are dissected, and the tissue edge of the vascular bundle can be seen to be brown, and the serious appearance is also black and brown, and the root is rotten. Prevention and control methods:

selection of disease-resistant varieties; the implementation of water-drought crop rotation; More than 50% of the spray is in the early stage of the disease. Sulfur suspension 500-600 times liquid, 12% green floating copper emulsion copper oil 5000 times, 47% Garinon wettable powder 500 times liquid. After the eggs hatch on the leaves, the larvae first damage the leaves and then burrow into the corolla to damage the pods.

and excrete a large amount of feces, contaminating the pods. Prevention and control methods: the method of inverting the "human" frame is used to reduce the contact between the pods and the leaves, and the corolla to be shed is manually peeled off every afternoon and cleared out of the field; The first flowering is at 9 a.m

Before 00, spray with 1000 times of liquid, 1000 times of Huasiben, 2500 times of Taibao or 500 times of high-efficiency BT liquid, once every 5-7 days. Aphids, mainly carob chlorophyll, affect photosynthesis, make carob grow poorly and affect the fruit. Removal method:

Use 800 times of 40 dimethoate EC or 1500 times of cypermethrin to spray after the dew dries in the morning on a sunny day or before the sun sets. <>

Seed treatment: Seed dressing with carbendazim or Fumei double wettable powder or soaking seeds with 60% anti-mildew 600 times solution for 30 minutes, washing and drying, and sowing. Because the pathogen mainly uses seeds as the transmission carrier, seed disinfection is very important, you can choose carbendazim or anti-mold treasure 600 times liquid soaking for 30 minutes, wash and dry and sow seeds can be effectively prevented. Once the disease occurs, drugs can be used for prevention and treatment while strengthening management, such as Antaisheng, Shibaogong and other drugs.

Symptoms of carob spot blight in greenhouses: the disease mainly harms leaves. The leaf spots are polygonal to irregularly shaped, 2 5 mm in diameter, dark green at first, then purple-red, and several lesions are fused into diseased patches, causing the leaves to wither prematurely until defoliation.

It usually occurs when the temperature is high and the humidity is high. <>

The insect elephant pest sucks the tender juice of the young fruit of the bean with the stinging and sucking mouthparts, so that the damaged bean grows and develops poorly, is shriveled and thin, and the quality is inferior and inedible. Manual capture: You can use the feigned death of the carob bug to shake the bean stalk in the early morning or evening to hunt and kill the bean bug when it fakes its death when it lands.

Drug treatment: use pesticides that are safe and non-toxic, high efficiency and low toxicity to humans and animals25 Zhongke Meiling 1000-1500 times liquid, sprayed in the evening on a sunny day. It can also be sprayed with 1500 times of cypermethrin in the afternoon to dusk on a sunny day.

Zebra is a pest that eats on the carob flowers, making the carob flowers unfruitful. Manual killing: Before the dew dries in the morning or at dusk, wear rubber gloves to kill.

When hunting carob zebras, do not let their juice splash on the **, otherwise, it will cause allergic blisters. Drug removal: use 25 Zhongke Meiling 1000-1500 times liquid or 90 trichlorfon 800 times liquid, spray and kill after the dew dries in the morning or evening on a sunny day.

There are many pesticides used to control aphids, and there are two common pesticides.

1. Anti-aphid.

Anti-aphid is a highly selective aphidicide, with contact killing, fumigation and foliar osmosis, which can effectively control all aphids except cotton aphid, and is also effective against aphids that are resistant to organophosphates. The insecticide is rapid, but the residual effect period is short. It is an ideal agent for crop safety, no harm to natural enemies, and comprehensive control.

2. Deltamethrin.

Deltamethrin is one of the most toxic pyrethroid insecticides, and has a good killing effect on cotton bollworm, red bollworm, cabbage worm, diamondback moth, Spodoptera litura, tobacco worm, leaf-eating beetle, aphid, blind bug, Tsubaki elephant, leafhopper, heart-eating worm, leaf miner moth, stinging moth, caterpillar, inchworm, bridge-building insect, armyworm, borer, locust and other pests.

Description: Spraying pesticides on crops should be blended in strict accordance with the instructions for pesticide use, and pesticides should not be used excessively. Spraying pesticides should wear protective masks, spraying pesticides should be carried out on sunny days and when there is no wind, and must avoid noon, choose to spray pesticides in the morning and evening.

Common insect pests of carob are: aphids, red spiders, and noctuidae. Saline-alkali insecticides, acetamacines, wormoprid and so on can be used. There will be good results.

The insect pest prevention and treatment methods of carob are as follows: (carob mainly includes coal mold, rust and seepage disease, aphids, pod borers and other pests and diseases) 1Coal mold:

It can be controlled with 50% methyl tobuzin or 50% carbendazim in the early stage of laughing locust disease. 2. Rust: 50% powder rust can be sprayed with 1000 times of wettable powder, sprayed once every 7 days or so, sprayed 2-3 times.

3. Aphids: 10% chrysanthemum emulsifiable concentrate 1500 times, or 10% imidacloprid 2000 times. 4 Pod borer:

It can be used with 1000 times of 50% phosphine, or 4000 times of 21% killing, once every 7-10 days, and the liquid can be evenly sprayed on the leaves and flower buds.

1. Carob rust: choose well-drained sandy loam soil to plant carob. 2. Carob blight:

Select varieties with strong disease resistance, and implement crop rotation and reasonable dense planting. 3. Bug pests: In the early morning or evening, shake the bean stalks, and hunt and kill bugs when they fake their death and land.

4. Bean zebra: Before the dew dries in the morning, wear rubber gloves to catch it.

How to control pests and diseases in beans1. Carob rust

Carob rust is mainly to invade the leaves, in the case of serious conditions, it will also harm the petiole and pods, in the early stage of the disease, there will be green, yellow and white spots under the leaves, if you want to solve the carob rust, you should choose to choose a well-drained sandy loam soil planting, using high furrows and deep furrows.

2. Carob blight:

Carob blight mainly harms stems, leaves and pods, mostly occurs near stem nodes or nodes, and will be water-stained in the early stage of the disease.

3. Bugs and elephant pests

The bug elephant sucks the tender juice of the young fruit of the bean with the stinging and sucking mouthparts, so that its growth and development are stunted, shriveled and thin, and the quality is inferior, and it can be shaken in the early morning or evening, and the bean bug is hunted when the bean bug feigns its death, or sprayed with 25% Zhongke Meiling 1000-1500 times the liquid.

4. Beanhorn zebra

Zebra specializes in gnawing on carob flowers, making it difficult for carob flowers to bear fruit, before the dew dries in the morning, wear rubber gloves to kill, when catching carob zebras, do not let its juice splash on the **, otherwise it will cause allergies, and you can also spray 90% trichlorfon 800 times the liquid.

1. Rust, yellow patches will appear on the leaves, and the color will gradually deepen. 2. Fusarium wilt disease mainly harms the rhizomes and leaves of carob, and it starts to be infected from the roots. 3. Viral disease, after the onset of the disease, the plant will bend and prolong the flowering time.

4. Powdery mildew, with white powder growing on the leaves. 5. Anthrax, small rust-colored spots on young stems.

1. Rust

After the first crop of beans is harvested, the vegetable garden is thoroughly disinfected to avoid the spread of germs.

2. Fusarium wilt

Fusarium wilt disease is mainly harmful to the rhizomes and leaves of beans, the roots of the plant begin to wither at the beginning of the infection, and the leaf edge will appear water-stained patches, in order to prevent the beans from suffering from wilt, can not be continuous cropping on the same field, at least two years of crop rotation must be guaranteed, and the rotation crop can not be beans.

3. Viral diseases

After the beans suffer from viral diseases, the place where the disease occurs will be uneven, and then begin to bend, so that the flowering time is delayed, when planting the beans, it is necessary to choose varieties with strong disease resistance, strengthen the use of pesticides, and improve the resistance of the beans.

4. Powdery mildew

After the bean is infected with powdery mildew, there is a layer of hoarfrost on the leaves, and the whole plant will wilt and die in severe cases, so it is necessary to cut off all the diseased leaves and spray them with diluted carbendazim solution to kill the bacteria on the beans.

5. Anthrax

Carob anthracnose is a fungal disease, usually occurs in dewy and moist conditions, after the onset of the disease, there are black spots on the surface of the carob, which gradually spreads to the whole plant, and it is necessary to cut off the rotten finger jujube part in time, and stop watering, so that the rhizome of the carob is kept dry.