-
What causes tomato leaf curl?
There are many causes of tomato leaf curl, mainly the following: 1. Viral disease. Viral diseases are generally spread by virus-transmitting insects such as aphids and whiteflies. Infected plants are stunted, with leaves curled and clustered, and in severe cases the leaves retain only veins with no mesophyll. Control: In addition to choosing virus-resistant varieties and implementing crop rotation, at the early stage of the disease, spray...
-
Which fungicides are effective for controlling tomato sesame leaf spot
★Symptoms: Tomato sesame leaf spot, also known as brown spot. It mainly infects leaves, and also infects petioles, fruit stalks and fruits. On leaves, grayish-brown round or nearly round spots 1-10 mm in diameter with distinct edges first appear; the diseased parts become thin and sunken, with a glossy appearance, especially obvious on the underside of the leaf, which distinguishes it from other leaf spot diseases. Large spots sometimes show concentric rings, and under humid...
-
What fungicides work well for controlling tomato leaf mold?
Leaf mold is a common disease on tomatoes. Although it does not directly infect the fruit, it reduces leaf function, which in turn affects yield and quality. In practice, growers often report that leaf mold is difficult to control and that spraying shows no obvious effect. The poor control results are mainly caused by improper control methods. When applying fungicides, pay particular attention to the following...
-
A new type of indoor potted flowering plant that is as easy to grow as pothos, roots from cuttings, stays evergreen all year round, and is beautiful in both flower and leaf
Introduction: Green plants and potted flowers are essential decorative touches for home life. Keeping some flowers and plants at home brings many benefits - it beautifies the home and lifts your mood. "Flower Voice Potted Plant Diary, Issue 1282" introduces you to a new type of indoor plant. Today...
-
Control Methods and Precautions for Mung Bean Leaf Spot Disease
Mung bean leaf spot disease is a serious disease harming mung beans, causing the leaves to dry up, quality to decline, and yield to decrease. Below is an introduction to the symptoms, transmission routes, conditions for onset, and control methods of mung bean leaf spot disease. Symptoms: Mung bean leaf spot disease mainly harms mung beans, with the affected part being the leaves. ...
-
How to prevent and control leaf mold in cherry tomatoes? Detailed explanation of prevention and control methods
Cherry tomatoes grown in greenhouses are often attacked by leaf mold, and vegetable growers should pay attention to prevention and control. I. Symptoms It mainly damages leaves, and in severe cases also damages stems, flowers and fruits. When leaves are infected, irregular or elliptical light yellow chlorotic spots appear on the leaf surface, and a white mold layer first forms on the diseased part of the leaf underside, later the mold layer becomes grayish brown or...
-
What to do when cherry tomatoes get leaf mold
What should you do when you find that cherry tomatoes have leaf mold? Cherry tomato leaf mold can be prevented and controlled as follows: 1. Symptoms. It mainly damages leaves, and in severe cases also damages stems, flowers and fruits. When leaves are infected, irregular or elliptical pale yellow chlorotic spots appear on the leaf surface, and a white mold layer first forms on the diseased part on the underside of the leaf, and later...
-
Succulent Leaf Cuttings: 4 Tips You Cannot Ignore Even One Of
Autumn is a great season for succulent cuttings. Many succulent lovers, in order to expand their succulent collection, like to take the leaves that fall off their succulents and use them for leaf cuttings, and the succulents that eventually grow out are especially beautiful. In fact, succulent leaf cuttings have many...
-
What are the control methods for yam leaf spot?
How should yam leaf spot be controlled? Seeking advice 〔Pathogen scientific name〕Septoria diocoreae J.K. Bai & Lu 〔Host crop〕Yam. 〔Disease diagnosis〕It mainly affects the leaves. When the leaves become diseased, small brown spots first appear on the leaf surface, then gradually expand into angular lesions 6-10 mm in size...
-
Leaf Color Diagnosis and Control Methods for Red and Yellow Seedlings in the Rapeseed Seedling Stage
Rapeseed stem rot, commonly known as "white stalk", "hemp stalk", "moldy root crown" and so on, is one of the main diseases affecting rapeseed growth. The control of rapeseed stem rot should focus on prevention, and the main technical control measures are as follows. 1. Prevent seed-borne infection: eliminate sclerotia and kill pathogens on seeds through screening, air separation, chemical seed dressing and other methods...
条件筛选