How to prevent and cure pineapple stem spot mildew leaf spot?
How to prevent and cure pineapple stem spot mildew leaf spot? What harm does pineapple stem spot mildew leaf spot disease have? Please introduce the harm of pineapple stem spot leaf spot: pineapple stem spot leaf spot is a common disease, which belongs to a kind of leaf spot disease, which mainly harms the leaves and affects the photosynthesis of leaves, resulting in the abnormal growth and development of fruit trees. The occurrence characteristics of the pathogen are mainly overwintering on the diseased leaves in the form of mycelium. In the coming year, when the conditions are suitable, the pathogens produce a large number of conidia, mainly through wind, rain and insects. The parasitism of the bacteria is weak and is invaded through the wound. In the cultivation and management of fruit trees, orchards with extensive management and weak growth potential of fruit trees are prone to disease. The disease likes a high humidity environment, so we should pay attention to it in the process of prevention and control. The control methods of pineapple pseudo-stem spot leaf spot disease are as follows: (1) strengthen orchard management, rational fertilization and irrigation, enhance tree potential and improve tree disease resistance. Prune scientifically, cut off withered branches and diseased leaves, adjust ventilation and light transmittance, pay attention to drainage measures, reduce orchard humidity and maintain moderate temperature and humidity in orchards. Combined with pruning, cleaning the orchard, timely removal of diseased leaves, withered branches and leaves to reduce the source of the disease. (2) Chemical control can be sprayed when necessary, and the chemicals available are 500-800 times of 50% carbendazim wettable powder or 500-800 times of 50% thiophanate wettable powder. Carbendazim and topiramate are commonly used. Click to get more pineapple planting techniques click to get more fruit planting techniques
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How to control diseases and insect pests in blueberry planting?
How to control diseases and insect pests in blueberry planting? Please guide the original fungi, bacteria and viruses that harm blueberries, there are dozens of diseases. The common hazards in production are as follows. (1) blueberry fungal disease 1. Blueberry rigor disease is the most common and severe disease in blueberry production.
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Pineapple tree disease picture collection
The black heart disease of pineapple tree is one of the main diseases of pineapple, which mainly harms the fruit, which affects the quality of the fruit and loses the commercial value of the fruit. Pineapple wilt pictures pineapple wilt, fruit growers call it red leaf disease, root rot, pineapple blast. The disease is caused by pink scale insects.
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