What pesticides are sprayed on persimmon trunk leaves, and what pesticides are sprayed on tomatoes?

Just spray some good foliar fertilizer.

Which drugs to choose, first of all, according to the types of pests and diseases that occur in crops, select pesticide varieties with excellent control effects, and also pay attention to the selection of pesticides that have no K pesticide harm to crop safety, or basically no I pesticide damage; It is less toxic to humans and animals, n or basically no O toxicity; Pesticide varieties that have no W pollution or basically no X pollution to the ecological environment. For example, for the prevention and control of aphids, whiteflies, American spotted loon flies and other pests, 8% Tiana avermectin, 1% Tiano Da acetamiprid, Tian S Da cyhalothrin, 11% Tian Puda chlorpyrifos, aphid lice Suke, insect mites, imidacloprid and other agents can be used for control; Or fumigation with dichlorvos and fumigation with aphids. The control of mites, flying lice, wood lice, scale insects and other pests can be controlled with 1% day n avermectin, 5% day h da acetamiprid, aphid lice speed, nisolan, day c da avi diesel emulsion, stone sulfur mixture and other agents.

For the control of lepidopteran pests, 23% Tianjda chlorpyramide, 40% Tianqda fenozide, Tianfda cyhalothrin, 6% Tianda avermectin, 70% Tianqda chlorpyrifos and other agents should be used for control. For the prevention and control of epidemics, downy mildew and other diseases, you can choose to use Tianqda Yufeng X, Kelu, Pulipke, Amicida, Oxazalin, alum, chlorothalonil, Dassheng, ethyl phosphorus aluminum, Ruixin mold, Keshuang cyanide and other agents for prevention and control, or use Kelu smoke pods, chlorothalonil smoke control and other drugs. For the prevention and control of gray mold, sclerotinia sclerotinia and so on, you can choose to use pesticides such as dictoxalin, sokeline, promethoxyde, amicida, Aimiao emulsifiable concentrate, Wanv milde, etc., or use Lide smoke bombs for smoke prevention and control.

The occurrence of powdery mildew, rust, leaf mold and other diseases can be prevented and controlled by Tianda Yufeng C, Fen Rust Ning, Stone Sulfur Mixture, Fuxing, Shigao, Amicida, Aimiao Emulsifiable Concentrate, Powder Biqing and other agents, or use white powder to clear smoke bombs for smoke control. For the prevention and control of bacterial diseases such as wilt, root rot, verticillium wil, cataplexy, and blight, and 4 and d anthrax, brown spot, gray spot and other diseases, drugs such as dichlormycofen, methyl tobuzin, amimidine, dixone, carbendazim and other drugs should be used for prevention and control. For the prevention and treatment of bacterial horn spots, perforation 4, edge blight, leaf blight, bacterial wilt, ulcer, medullary necrosis and other bacterial diseases, it can be treated with agents such as tianrdanoxa, chunleimycin, flupiic acid, ciprofloxacin, ofloxacin, doning, polyantimycin, sterilizim, DT fungicide, gramide, and copper luoamide.

For the prevention and control of viral diseases, Tianu Da Yufeng Q, Pyrobazim, Virus A, Bacterium Poison Qing, Phytophyl and other agents should be used for prevention and control. Basically, n is more commonly used than 2, and you can choose one p under n from 8.

a) Tomatoes grown in gray mold sheds are severely diseased.

1. Appropriately increase phosphorus and potassium fertilizers to improve plant disease resistance. Drip irrigation and dark irrigation technology are used to prevent flooding. In the early stage of the disease, remove the residual petals and stigma, diseased leaves and fruits, and pull out the diseased plants in time to prevent the spread of the disease.

2. Ecological prevention and control: strengthen ventilation management with the goal of increasing temperature and dehumidification. Here's how:

On sunny days, the canopy will be closed in the morning to heat up, and when the temperature reaches 28-30 degrees Celsius, it will last for 1 hour and then begin to let the top wind fall; Continue to let the air at noon, and keep the temperature at 20-25 degrees Celsius; Close the vents in the afternoon when the temperature reaches 18-20 degrees Celsius; The night temperature is maintained at 14-16 degrees Celsius and the relative humidity is maintained at 70%-80%. On cloudy days, ventilate for a short time at noon.

What pesticides to use tomatoes, tomatoes generally play broad-spectrum antibacterial drugs carbendazim chlorothalonil and so on in the early spring, cold and cool in early spring, to prevent tomato early blight in the full fruit period, to prevent gray mold in the rainy season to prevent late blight, what disease to buy pesticides at the local plant protection station, the staff of the plant protection station can tell you what pesticides to fight.

What kind of pesticides should be used on tomatoes? Basically, it should be the kind of antiseptic and mildew anti-mildew medicine.

Tomatoes are easy to rot in rainy or unventilated places, so it is said that anti-mildew medicine should be used.

It's best not to fight anything you eat, because it's a poison.

Hello: You can choose phoxanthion emulsion, malathion emulsion, imidophos emulsifiable concentrate is 1000 to 1500 times the concentration of spraying, spraying should be uniform.

1.Scrape the bark. The bark crack is a good place for pests to overwinter, and scraping the bark can greatly reduce the number of overwintering pests, so it is necessary to scrape the persimmon tree.

Rough rind. 2.The trunk is painted white. After scraping the bark of the persimmon tree, it is necessary to apply the whitening agent at the scraping part, and the concentration of the coating solution should be moderate, so that it is advisable to apply it without loss and not warp and fall off after drying.

3.Plastering mud. Persimmon insects and other pests in the grafted rootstock trunk bark crack of the wintering base is very large, because the bark of the black jujube tree is difficult to scrape, can be smeared on the trunk is not thin, not dry, more viscous mud, the old mature larvae suffocated in the tree.

4.Spraying control. In the later stage of persimmon dormancy, after the completion of winter pruning and other work, the tree and the tree should be evenly sprayed with 3 5 Baumé stone sulfur mixture or 5% diesel emulsion to kill the source of diseases and insects remaining on the tree and under the tree.

Main pest control of persimmon:

1. Persimmon corner spot disease: 6 July with the help of rain to spread the germs, August is the peak period of the disease, should be sprayed in mid-June 1 (copper sulfate.

2 5 (lime) 600 times (water) Bordeaux liquid.

2. Persimmon round spot disease: the ascospores formed by the mycelium of the source are mature in mid-June, spread by wind and rain, and the disease begins in August and September, and is sprayed once in mid-June 1 (copper sulfate) 2 5 (lime) 600 times (water) Bordeaux solution to prevent infection. Round spot, horn spot, anthrax.

Powdery mildew can also be controlled with Baumé stone sulfur mixture or 50% methyl tobuzin 800 1500 times liquid spray.

3. Persimmon insects: from early May to early June, the first generation of larvae are harmed from late May to early July, and the second generation of larvae begin to damage in mid-July until harvest. In mid-to-late June and mid-August to early September, be sure to pick the damaged fruit and bury it deeply.

At the peak of adult occurrence, 90% trichlorfon is used.

1000 times liquid spraying.

In addition, there are persimmon caterpillars and beetles.

Blood-spotted leafhopper, persimmon armyworm, stinging moth.

etc., can be sprayed with 40% dimethoate 500 1000 times liquid; The stinging moth was sprayed with 600 800 times the liquid of the crystal trichlorfon.

Herbicide. The symptoms of herbicides are variable and diverse, similar to those of some diseases, and often lead to misunderstandings in diagnosis. Generally, the drug damage is faster than the disease symptoms, and no pathogens appear.

In production, the identification of herbicide hazards should be strengthened. It can control more than 40 families of herbs and woody plants, and also has the effect of "cutting grass and roots".

Hello dear, spray potassium permanganate. Potassium permanganate is a strong oxidizing agent, which has oxidative decomposition effect on a variety of chemicals, and spraying 6000 times potassium permanganate solution can effectively alleviate the pesticide damage. Rinse with clean water.

Most of the chemical agents are not resistant to water washing, if the concentration of pesticides is too large to cause pesticide damage, you can use a sprayer to fill it with water, and spray it repeatedly on the leaves of crops to wash away the chemicals remaining on the surface of the leaves. Suspend the use of similar drugs. Before the pesticide damage is completely removed, the use of nongnafan drugs should be minimized, especially the use of similar pesticides should be stopped, so as not to aggravate the pesticide damage.

Of course, when the drug harm is lifted, you can consider continuing to use the drug according to the actual situation. Follow with fertilizing water. After the occurrence of pesticide damage to crops, some fast-acting fertilizers should be supplemented with watering, and then cultivated and loosened the soil to promote the normal growth of crops as soon as possible.

At the same time, urea and potassium dihydrogen phosphate should be sprayed on the foliar surface to improve the nutritional status of crops and enhance the absorption capacity of roots. When operating, attention should be paid to spraying the back of the leaf evenly, the temperature is 18 25, before 10 am and after 4 pm.

In the process of planting and growing persimmon trees, there will always be a variety of pests and diseases, such as common anthracnose, persimmon corner spot, persimmon round spot, persimmon pedicle, persimmon leafhopper, etc., so medicine is needed to fight insects. Different insect diseases are treated differently at different times. Medication should be administered according to the situation.

From May to August, it is the high incidence period of persimmon tree diseases and pests, strengthen cultivation management, remove pathogens in time, remove diseased stems and dead branches before germination, and take them out of the garden to bury or burn.

In winter, the persimmon tree can be cleaned and pruned, and some diseased branches and dead branches can be cut off and destroyed in time.