How to prevent and cure longan algal spot disease?
How to prevent and cure longan algae spot disease? Please introduce the methods of prevention and treatment of longan algae spot disease: 1. Strengthen cultivation management. In order to improve the orchard environmental conditions, especially ventilation and light transmission, attention should be paid to flood and drought prevention, organic fertilizer should be applied, phosphorus and potassium fertilizer should be applied more, so as to strengthen the tree vigor and improve the disease resistance. Remove diseased leaves and burn them intensively to reduce infection sources. II. Spray control. During the period of disease, 0.5% lime equivalent Bordeaux mixture was sprayed 1 to 2 times in seriously ill orchard. Click for more longan planting technology Click for more fruit planting technology
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What is longan ghost broom disease?
What is longan ghost broom disease? Please introduce longan ghost broom disease: ◎ disease ◎ is also known as witches' broom disease. Bald branch disease, broom disease, Hu bud, leprosy, tiger ear and mute are distributed in Fujian, Guangdong, Guangxi, Zhejiang and Taiwan provinces (autonomous regions). In Guangdong, Guangzhou.
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How to control white moth wax cicada and wax powder scale in longan orchard?
How to control white moth wax cicada and wax powder scale in longan orchard? Please introduce the method: White moth wax cicada and wax powder scale both belong to Homoptera, the former is Cicadellidae, the latter is Coccidae, which mainly harms fruit trees such as citrus, longan, litchi and mango. In the past, the population of this pest was often naturally controlled by a large number of natural enemies.
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