Vegetable Lists
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Chemical Control of Tomato spot Blight
★ symptoms: tomato spot blight, also known as white star disease. Tomato can occur at all growth stages, infecting leaves, petioles, stems, calyx and fruits. The leaves are infected with water-stained small round spots on the back of the leaves, followed by dark brown edges on both sides of the leaves, gray-white round or near-round slightly sunken spots in the center.
2018-09-11 -
Tomato fertilizer-saving and water-saving technology in warm winter greenhouse
Fertilizer saving: considering the cost saving, input reduction and fertilization efficiency, 10000 kg of chicken manure, 50 kg of urea and 50 kg of ternary compound fertilizer are applied per mu, which is the best amount of fertilizer for fruits and vegetables in winter warm greenhouse in Shandong coastal area. Water saving: drip irrigation is adopted, and the soil relative water content is 80%, which is higher than that of conventional furrow irrigation.
2018-09-11 -
How to control tomato sesame spot disease with chemicals
★ Symptoms: tomato sesame spot disease is also known as brown spot disease. It mainly infects leaves, petioles, fruit stalks and fruits. 1-10 mm in diameter, round or nearly round, marked grayish brown spots on leaves, thin and concave, with light, especially obvious on back of leaves, different from other leaf spots. Large spots sometimes appear ring lines, wet...
2018-09-11 -
Tomato pruning is skillful.
Symptoms: tomato bacterial spot disease, also known as bacterial microspot disease. It mainly harms leaves, stems, flowers, petioles and fruits, especially the leaf margin and immature fruits. Leaves are infected with dark brown to black spots, often surrounded by yellow halos; petioles and stems are infected with black spots; young green fruits are infected with disease.
2018-09-11 -
Symptoms and Chemical Control of Tomato Acid Rot
At present, symptoms only occur in a few areas. It is only harmful to fruits, and most of them are overripe fruits, especially those with wounds are the most susceptible to disease. The part of the disease softens, the epidermis turns brown, wet rot wrinkles, and there are fine cracks. Sparse white mildew appeared on the surface of the disease when the humidity was high. In the end, the diseased fruit is dripping, rotten and sour. The law of the disease.
2018-09-11 -
Tomato should be cautious in the use of Zhuangzhang.
In recent years, many farmers use hormones such as auxin when chemical control of tomatoes. However, due to the improper use of Zhuang element, it often results in small fruit, split fruit, green top and so on. For this reason, it is suggested that the chemical control of tomato should be based on nutritional regulation, and attention should be paid to prevent the following from happening. 1. "small fruit disease": because farmers are in.
2018-09-11 -
What is the reason for curling tomato leaves?
There are many reasons for curling tomato leaves, there are mainly the following: 1, virus. Virus diseases are generally transmitted by aphids, whitefly and other virus-transmitting insects. The susceptible plants are short and the leaves are curly and clustered. In severe cases, there are only veins and no mesophyll in the leaves. Prevention and treatment: in addition to the selection of anti-virus varieties, the implementation of rotation, in the early stage of the disease, spraying.
2018-09-11 -
Chemical Control of Tomato Leaf Roll Disease
Physiological leaf rolling control measures are timely watering and fertilization after fruit setting, and covering the sunshade net, covering it in sunny days, uncovering it at night, and not covering in cloudy days. The symptoms of tea yellow mites are narrowing, stiff, erect, wrinkled or twisted leaves, and finally bald tip. The control agent can be sprayed with 1.8% chlorhexidine 3000 times solution. Hormones.
2018-09-11 -
Three wonderful ways to prolong the picking period of Tomato
After the first generation tomato is harvested, the following three methods can be adopted to make the tomato blossom and bear fruit again and improve the economic benefit. 1. After the first generation tomato is ripe and harvested, the withered branches and yellow leaves are cut off, the new branches with exuberant regeneration ability are retained, and a fertilizer application ditch 20 cm long and 15 cm deep is dug on one side of the trunk.
2018-09-11 -
The reason why tomatoes can't sit still in the later stage
Tomato navel rot should be controlled by comprehensive measures based on cultivation measures. Including: (1) selection of disease-resistant varieties, such as Qiguo, Changchun 1, Lmur402 and so on. (2) timely watering: a balanced supply of water must be ensured. Especially in the fruit period, we should pay more attention to the balanced supply of water, drought.
2018-09-11 -
How to identify tomato late blight
Late blight: the whole growth period and leaves, stems and fruits can be damaged, especially leaves and green fruits. The disease of seedlings generally appeared dark green watery spots from the leaves, and then extended to the stem, showing dark brown rot near the petiole. with the development of the disease, the base of the young stem was waterlogged constricted and the plant wilted and collapsed. The disease in the adult stage starts from.
2018-09-11 -
How to Control physiological Diseases of Tomato
Physiological diseases often occur in the process of tomato cultivation, which have a great impact on the yield and quality. The most common are deformed fruit, hollow fruit, navel rot, fruit cracking, muscle rot, sunburn, poor coloring and so on. Deformed fruit. It mainly occurs in the period of flower bud differentiation and development, in low temperature and high fertilizer (especially nitrogen camp.
2018-09-11 -
How to Control the Fertilizer damage of Tomato
Leaf mildew is a major disease of tomato in greenhouse. It mainly harms leaves. Lack of light, poor ventilation and excessive humidity are the main causes of leaf mildew. The control method is to select disease-resistant varieties, such as Jingyan Jiafan No. 17 and so on. Strengthen the management of temperature and humidity, ventilate and reduce humidity in time. Balanced fertilization, formula fertilization.
2018-09-11 -
How to use medicine to prevent tomato from growing "black hair"
Leaf mildew is a common disease in tomato. Although it does not directly infect the fruit, it will lead to the decrease of leaf function and affect the yield and quality. In production, some farmers often report that it is difficult to control leaf mold, and the effect is not obvious after spraying. The cause of poor control effect is mainly due to improper prevention and control methods, and attention should be paid to the following.
2018-09-11 -
What agents are used to control tomato leaf mildew?
Leaf mildew is a common disease in tomato. Although it does not directly infect the fruit, it will lead to the decrease of leaf function and affect the yield and quality. In production, some farmers often report that it is difficult to control leaf mold, and the effect is not obvious after spraying. The cause of poor control effect is mainly due to improper prevention and control methods, and attention should be paid to the following.
2018-09-11 -
Methods to prevent Tomato stunting Disease
Tomato quenching disease mostly occurs in the seedling stage, seeds are vulnerable before unearthed, often appear rotten seeds, dead seedlings, quenching and other symptoms. The prevention and control methods are as follows: 1. Sterilize the seedling bed and choose a place with slightly higher terrain to facilitate drainage. 2, carry on the management to the seedling stage, sow seed.
2018-09-11 -
Field Management Technology of Pepper
Field Management Technology of Pepper
2018-09-11 -
What about cucumber deformity?
What about cucumber deformity?
2018-09-11 -
Efficient intercropping techniques of spring cauliflower and pumpkin
First, symptoms: 1, seedlings: the disease appears dark green water-immersed disease spot, from the leaf to the main stem, so that the petiole and stem become thin and black-brown and rotten, the whole plant wilts, and the disease produces a white mold layer when the humidity is high. The disease occurs at the base of the young stem, forming waterlogged constriction, and the seedlings wilt or lodge. 2 、...
2018-09-11 -
How to promote tomato fruit setting
In recent years, navel rot has occurred everywhere in tomato production. The manifestation of this disease is in the eggplant fruit expansion period, due to the downward navel of the fruit, the part of the color that can not see the sun turns brown, some dry, some rot, which has a great impact on the yield and quality. We should pay attention to the following points in fertilization: 1. Attach importance to the fertilization of seedbed.
2018-09-11