-
Comprehensive Control Methods and Key Technical Points for Loquat Gray Leaf Spot
Loquat gray leaf spot, also known as "ring spot." It is the most important disease of loquat. It attacks branches, leaves, flowers, and fruit. There are two types: acute and chronic: in the chronic type, leaf spots are initially light brown circular spots; later they join into irregular large spots, with small black dots scattered on them. On young shoots, the disease starts as small water-soaked brown...
-
What to Do About Copper Deficiency in Waxberry? Causes and Control Methods Explained
Waxberry twig blight is caused by boron deficiency, so planned boron supplementation can eliminate the harm of this disease. Spraying a 0.1 to 0.2 borax solution 2 to 3 times during the waxberry growing period can effectively control the disease. Root application can also be used; for mild boron deficiency, use 0.3 to 0.6 kg of borax per mu, and for severe boron deficiency, use 1.3...
-
How to control fruit flies on Chinese bayberry? Introduction to practical control methods
In recent years, the occurrence of fruit flies has reduced the yield and quality of Chinese bayberry, seriously affecting the economic development of the Chinese bayberry industry. In order to explore the occurrence patterns and control techniques of fruit flies on Chinese bayberry, the author has observed this pest since 2008, and has now basically clarified its occurrence situation in our county and summarized the corresponding control techniques. Fruit flies...
-
Methods for Controlling Pests and Diseases of Lychee and Longan in Autumn and Winter
I. Pest species during the autumn shoot stage and their control. Autumn shoots are next year's fruiting branches; if they are eaten bare by pests, it will seriously affect next year's flower bud formation. The main pests of autumn shoots are leaf-eating types, including various geometrid moths and various leaf-rolling insects. Among them, the eriophyid mite (felt disease) and the longan psyllid, etc., cause the most serious damage from September to November each year...
-
A Detailed Guide to the Main Diseases of Chinese Bayberry (Yangmei) and Their Control Methods
I. Chinese Bayberry Crown Gall Disease 1. Symptoms: Chinese bayberry crown gall disease is a bacterial disease. It mainly affects the branches and trunks of 2-3 year old fruiting trees, mostly forming tumors on the branches and trunks. The tumors are nearly spherical, vary in size, are very hard and corky, and range in color from brown to dark brown. Generally, the tumors on the branches and trunks begin to enlarge in early April, and from July to August...
-
Detailed Explanation of Grafting Methods and Tips for Bayberry (Yangmei) Saplings
Bayberry saplings are generally grafted by the branch grafting method, mainly cleft grafting. For the scion, select a vigorous, high-yielding tree in full fruiting stage, and cut 1-2 year old branches from the outer middle-upper part of the canopy. For the rootstock, use wild seedling stock or seedlings grown from seed collected from self-sown trees, cultivated for 2-3 years. Bayberry grafting is carried out before bud break in spring, and early...
-
How to grow longan seedlings? Detailed methods and techniques
Longan, also known as yuanrou or guiyuan rou, has the effects of tonifying the heart and spleen and nourishing the blood to calm the mind, and is a well-known bulk medicinal and edible delicacy. It is mainly produced in Fujian, Guangdong, Guangxi, Sichuan and Taiwan, China, and other places. Its cultivation can use two methods: seed propagation and grafting propagation. The seed seedling technique is introduced as follows: 1. Selection of nursery land The nursery...
-
How to control the longan eriophyid mite? Detailed control methods
Damage situation: It pierces and sucks sap in the terminal buds of new longan shoots and in flower clusters, causing the internodes of the flower clusters to shorten, and the florets cannot open normally and develop into swollen flower clusters that do not fall off for a long time. Fruit growers in Guangdong commonly call them "ghost flowers"; damaged new shoots become bow-shaped and claw-like, with leaf margins curling inward and unable to unfold, which growers call ghost shoots. In particular, ghost flowers cannot set fruit...
-
What are the methods to prevent longan fruit drop and fruit cracking?
Scientific fertilization based on the growth characteristics of longan and the requirements of its annual growth and fruiting cycle is the foundation for early fruiting, high yield, and good quality in longan trees. Experiments have shown that a longan orchard producing 1 ton of fruit per mu should apply 20-25 kg of pure nitrogen annually (of which nitrogen from organic fertilizer accounts for about 40% of the annual nitrogen application). Nitrogen, phosphorus pentoxide, potassium oxide, calcium oxide,...
-
Management methods for lychee and longan during continuous rainfall
When longan blooms during continuous overcast and rainy weather, the anthers do not split open, pollination and fertilization are difficult, and the flowers pile up, causing flower soaking and rot, resulting in no fruit or poor fruit set. Yuhualing Technology hereby reminds fruit growers to pay attention to preventing flower soaking. 1. Do a good job of flower thinning. For those with short flower panicles, many lateral flower panicles and dense flower buds, thinning is needed before flowering...
条件筛选