brown spots Learn more about brown spots
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Lettuce planting: what is lettuce brown spot?
What is lettuce brown spot? What harm does lettuce brown spot have? How to control brown spot of lettuce? Netizens are also invited to help introduce the harm of lettuce brown spot and its control methods as follows (provided by the farming network). The harm of lettuce brown spot: lettuce brown spot mainly harms leaves; disease spots on leaves.
2018-07-18 -
Control methods of harmful symptoms of plant brown spot and the difference between plant brown spot and anthracnose
Brown spot is a fungal disease caused by Rhizoctonia solani, which is widely distributed all over the world and can infect all turfgrasses, especially cold-season turfgrasses, resulting in the death of lawn plants and the formation of large area bald spots on the lawn. Greatly destroy the lawn landscape
2018-09-05 -
The latest control method of peanut brown spot disease
Peanut brown spot is a fungal disease, caused by Cercospora arachidis infection, damage peanut leaves, initially chlorotic spots, then expanded into nearly circular or irregular small spots, the disease spots are larger and lighter than black spot, the front of the leaves are dark brown or tea brown, the back
2020-11-10 latest peanut brown spot disease control method -
Specific drug for grape brown spot
At the initial stage of the disease, 50% carbendazim soluble powder can be sprayed 1500 times, or 50% carbendazim 200 times Bordeaux solution, or 50% carbendazim wettable powder 700x solution; if the disease is serious, it can be sprayed once with equal volume of 200 times Bordeaux solution, or 500 times 50 times carbendazim, or 600,800 times chlorothalonil, each
2020-11-09 Grape brown spot disease specific medicine initial stage can be sprayed 50% sterilization -
Lettuce planting: how to prevent and cure the brown spot of lettuce?
Last year, it was found that there were brown spot disease and black spot disease in lettuce planting. How to control lettuce brown spot disease? There are no netizens to guide the prevention and control of brown spot and black spot on lettuce: lettuce brown spot and black spot are considered to be harmful to leaves. Lettuce leaf spots harmed by brown spot show two symptoms: one.
2018-07-18 -
Clove brown spot
Symptoms and pathological changes: mainly formed brown spots on the leaves, disease spots round, nearly round or irregular, dark brown edge, light brown center, severe brown spots, early defoliation, leaving only a small number of leaves in the whole plant. The pathogen is fungus, Cercospora lilac, the seed is spherical, dark brown, the conidium is fascicled and erect.
2018-12-16 -
Brown disease long black spot pod depression how to control pea brown spot
Brown disease long black spot pod depression how to control pea brown spot
2018-07-11 -
Harmful symptoms and control methods of peanut brown spot
Peanut brown spot is a fungal disease, which is caused by Cercospora hypogaea infection. Peanut leaves are damaged by chlorotic spots at first, then expand into near round or irregular spots, the disease spot is larger and lighter than black spot, the leaf front is dark brown or tea brown, the back is brown or yellow brown, and there is a bright yellow halo around the spot.
2018-09-06 -
Control methods of Peanut Brown spot
Control methods of Peanut Brown spot
2018-07-05 -
Introduction to the symptoms of grape brown spot
Symptom identification: it is a fungal disease, which is mainly harmful to leaves, which is divided into large spot and small spot, which is caused by two kinds of diseases. At the initial stage of the occurrence of large brown spot, round or polygonal disease spot is formed around the leaf veins, the disease spot is brown to dark brown, the edge is reddish brown, and there is a yellowish-green halo around the spot, gradually expanding to form brown.
2018-09-12 -
The latest control methods of walnut brown spot
Walnut brown spot is mainly harmful to leaves and tender shoots. At the initial stage of infection, gray-brown round or irregular disease spots appear in the leaves, and black spots are produced in the later stage of the disease. The seriously affected leaves are scorched and fallen early, and the disease spots on the tender shoots are dark brown and long oval slightly sunken.
2020-11-10 The latest walnut brown spot disease control methods -
Control techniques of Brown spot and Black spot of lettuce
Lettuce brown spot and black spot are considered to be mainly harmful to leaves. The leaf spot of brown spot shows two symptoms: one is water-stained at first, then gradually enlarged into round or irregular shape, brown to dark gray spot, ranging from 2mm to 10mm in diameter. Another kind is dark brown disease spot, the edge is irregular, the periphery has the water stain shape halo. Tide.
2018-09-12 -
There are some ways to control the brown spot of sweet-scented osmanthus.
The main manifestations of sweet-scented osmanthus brown spot are as follows: when the pathogen infects the leaves, the damaged leaves begin to appear small macula, and then gradually become yellowish brown to grayish brown, the disease spot is nearly round or irregular, or polygonal spots due to the limited expansion of leaf veins. There is a yellow halo outside. Sweet-scented osmanthus brown spot is a very common disease.
2018-07-16 -
Green onion planting technology: what is green onion brown spot disease?
What is the brown spot of green onion? What harm does green onion brown spot disease have? Is there any way to prevent it? Netizens are also asked to help guide the farming network to sort out the harm and control methods of green onion brown spot, which are listed below for netizens' reference. The harm of green onion brown spot: green onion brown spot, also known as leaf tip Verticillium wilt.
2018-07-17 -
Rich tree leaves have brown spots, pay attention to distinguish leaf blight from leaf spot.
Rich tree leaves have brown spots, pay attention to distinguish leaf blight from leaf spot.
2019-03-01 -
Prevention and control of apple deciduous apple brown spot caused by brown spot after rain
Prevention and control of apple deciduous apple brown spot caused by brown spot after rain
2018-10-26 -
Control methods of Brown spot of Walnut
Control methods of Brown spot of Walnut
2018-07-02 -
How to control brown spot in grape planting
Symptoms: Brown spot disease is caused by infection of Pseudocercospora viticola, mainly damaging grape leaves. The infection point is light brown and irregular angular spots at the initial stage of disease. The disease spots gradually expand, the diameter can reach 1 cm. The disease spots change from light brown to brown, and then turn reddish brown.
2020-11-08 seed grape how control brown spot disease symptom -
How to prevent and cure the brown spot of Magnolia magnolia?
How to prevent and cure the brown spot of Magnolia magnolia? Please give guidance on Magnolia brown spot: first, symptoms: Brown spot pathogen mainly infects leaves. The diseased leaves initially appeared light brown or yellow spots on the surface, then enlarged into round or irregular plaques, 5 mm in diameter, dark brown at the edge, grayish white in the center, and growing on it.
2018-07-18 -
How to prevent and cure the brown spot of Hami melon?
What harm does cantaloupe brown spot disease have? How to prevent and cure the brown spot of Hami melon? Netizens are also asked to help introduce the harm and control methods of cantaloupe brown spot disease through the farming network, which are listed in detail below for netizens' reference. What are the hazards of cantaloupe brown spot: Brown spot is a common disease of Hami melon.
2018-07-18