chestnut gall Learn more about chestnut gall
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Control of chestnut gall wasp
Chestnut gall wasp DryocosmuskuriphilusYasumatsu belongs to the family Cynipidae, also known as chestnut tumor wasp. Chestnut producing areas are widely distributed, causing damage to larvae in the new buds of chestnut trees. When the chestnut buds germinate in spring, the injured buds can not germinate, gradually expand and form galls, and sometimes there are abnormal leaflets on the gall tumor. In severe cases, the tree is weak, which can cause branches or the whole plant to die. The body length of the morphological adult is 2.5ml 3mm, and the head and abdomen are dark brown.
2019-01-16 -
Attention should be paid to the control of chestnut gall wasp this year.
Chestnut gall wasp, also known as chestnut tumor wasp, is the main pest that harms Chinese chestnut, which occurs almost every year in Chinese chestnut producing areas, but it is particularly serious this year. The injured rate of big trees, especially old barren trees that can not be pruned, is up to 100%. It is urgent to control chestnut gall wasp. The chestnut gall wasp occurs one generation a year and overwinters as the first instar larvae in the killed chestnut buds. In Yanshan mountain area, the overwintering larvae begin to feed actively in the germination period in mid-April and grow rapidly. In early May, galls form in the shoot and leaf expansion stage, and most of the gall tumors are at the top of the new branches.
2019-01-15 -
What are the main pests of Chinese chestnut?
What are the main pests of Chinese chestnut? Please introduce the occurrence characteristics and control methods of chestnut gall wasp and cloud spot longicorn beetle as follows: first, chestnut gall wasp 1. The morphological characteristics of adults are black wasps, with a body length of 2mi 3mm and transparent front and rear wings. The egg is oval, 0.2 mm long, milky white, with a tail.
2018-07-19 -
Control of insect pests in planting Chinese chestnut
1. Chestnut gall wasp, also known as chestnut tumor peak, adult head and abdomen dark brown, antennae filiform, brown, chest dilated, pitch black, lay eggs in the bud from June to July, and the larvae grow in the bud and overwinter. In spring, buds germinate and produce short branches, damaged branches or petioles, etc.
2020-11-08 Species chestnut pest control chestnut gall bee also known as chestnut tumor peak -
Control methods of insect pests in Chinese chestnut
1. Chestnut gall wasp, also known as chestnut tumor peak, adult head and abdomen dark brown, antennae filiform, brown, chest dilated, pitch black, lay eggs in the bud from June to July, and the larvae grow in the bud and overwinter. Spring buds sprout short branches, damaged branches or petioles and other inflated adult galls (tumors), withering branches and leaves and weakening the tree.
2018-09-13 -
How to make Chinese chestnut fruitful?
How to make Chinese chestnut fruitful? Please introduce the method so that the high yield of the planted chestnut can be referred to the following methods: first, close planting can not only increase the early yield and obtain economic benefits as soon as possible, but also facilitate intensive management of the orchard. Planting density: the row spacing is generally 2 m × 4.
2018-07-19 -
Comprehensive high-yield technology of Chinese chestnut
1. Close planting and reasonable close planting can not only increase the early yield and obtain economic benefits as soon as possible, but also facilitate the intensive management of orchards. Planting density: the plant row spacing is generally 2m × 4m and 3m × 4m or 3m × 5m. The specific density depends on the characteristics of rootstock, scion or site conditions. It can be recovered within 6 years after planting.
2018-09-13 -
What is the life habit of horned aphid (gallnut aphid)? What are the functions? Where are they mainly distributed?
The horned aphid is also called the aphid and the gallnut aphid. It is an insect of the aphid genus. In summer, it mainly parasitizes on the compound leaf wings or young leaves of Rhus chinensis. The leaves stabbed by the horned aphid produce irregular tumor-shaped galls called gallnuts. It is a water chestnut.
2020-11-11 hornfold aphid gallnut life habit what -
How to manage Chinese chestnut in summer?
How to manage Chinese chestnut in summer? From July to August, the fruit development of Chinese chestnut is in the expansion stage. It is very important to do a good job in the application of strong fruit fertilizer, mid-tillage and weeding, pest control and summer pruning in time. Fertilizing and weeding and applying strong fruit fertilizer is the second topdressing for chestnut trees. First ten days of July.
2018-07-19 -
Management of Chestnut expansion period
Management of Chestnut expansion period
2018-07-05 -
Management of expanding period of planting Chinese Chestnut
Timely fertilization in summer and autumn, the roots were fertilized once a month, mainly nitrogen, phosphorus and potassium. For trees with a yield of more than 50 kg, urea 0.75 kg, potassium dihydrogen phosphate 0.5 kg, potassium dihydrogen phosphate 0.5 kg, or nitrogen, phosphorus and potassium compound fertilizer 1 kg or 1.5 kg were applied after rain.
2020-11-08 Species chestnut expansion period management timely fertilization in summer and autumn -
Key points of winter management of chestnut orchard with deep ploughing and fertilization
Key points of winter management of chestnut orchard with deep ploughing and fertilization
2018-10-27 -
How to manage the fruit expansion period of Chinese chestnut?
How to manage the fruit expansion period of Chinese chestnut? Please introduce that summer and autumn is the period of rapid expansion of chestnut fruit. It is necessary to strengthen the management of fertilizer and water and the prevention and control of diseases and insect pests in order to make the fruit fully enlarged, the pulp is full, the fruit does not drop in the middle stage, and the fruit quality is good, so as to obtain high yield and high quality. The specific management measures are as follows:.
2018-07-19 -
Planting method of Castanea henryi
Planting method of Castanea henryi
2018-11-24 -
The latest planting method of Castanea henryi
Castanea henryi is one of the chestnuts, and chestnuts are mainly divided into Castanea henryi and Castanea mollissima. Chinese chestnut is planted in most areas of China, while Castanea henryi is mainly produced in the mountains north of Fujian. Castanea henryi is one of the most important woody food crops in China, which can be processed into chestnut powder or
2020-11-10 The latest Castanea henryi planting method yes chestnut medium -
How can chestnut trees be planted for high yield?
How can chestnut trees be planted for high yield? Please give an introduction to planting chestnut trees in order to obtain high yield, you can refer to the following cultivation models: first, select improved varieties. The improvement of chestnut cultivation is the basis for achieving high yield in a large area. The basic basis for the selection of improved varieties of Chinese chestnut is that ① has strong adaptability to local climate and soil conditions.
2018-07-19 -
The effect of fenpropathrin
Fenpropathrin has contact toxicity, stomach toxicity and certain repellent effect, wide insecticidal spectrum and long residual period, and has a good effect on many kinds of spider mites. Especially for pests and harmful mites, it can be used to treat both pests and mites, especially for pests and harmful mites.
2020-11-09 Methyl cyanide permethrin action methyl cyanide with contact -
high temperature and humidity
high temperature and humidity
2018-05-06 -
What are the common medicinal plants?
What are the common medicinal plants?
2018-07-05 -
What are the latest common medicinal plants?
Medicinal plants refer to the plants used in medicine for disease prevention and treatment, and all or part of their plants are used for medicine or as raw materials for the pharmaceutical industry. In a broad sense, it may include use as nutrients, certain hobbies, condiments, pigment additives, and pesticides and veterinary uses
2020-11-10 Latest common medicinal plant have which