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Introduction to the methods of prevention and treatment of Kang's powder scale disease of Ligustrum lucidum
Ligustrum lucidum is an indispensable color color leaf plant in urban landscaping, and Kang's pink scale disease is a common disease. here are the methods of prevention and treatment of Kang's powder scale disease for reference. I. Ligustrum lucidum Kang's powder scale disease is also known as mulberry.
2020-11-09 Golden leaf privet prevention treatment Kang's powder scale disease method -
Kang's pink scale in pear orchard
The main results are as follows: (1) the occurrence regularity of Kang's pink scale belongs to Homoptera, Coccidae. Also known as pear pink scale, plum powder scale, mulberry powder scale. Generally, there are three generations a year, overwintering with eggs and nymphs in rough bark cracks, bagged diseases and pests scattered in the orchard, weeds around the rhizosphere, soil clods, fallen leaves and other hidden places. Use adults and nymphs to suck the juice of buds, shoots and fruits. Before bagging, it is mainly harmful to buds and shoots, causing leaves to twist, swell, wrinkle and wither. After bagging, drill into the bag to harm the fruit, live in groups in the calyx depression and stem depression, secrete white wax powder, pollute the fruit, and absorb.
2019-01-16 -
Methods of preventing and treating Kang's powder scale disease of Ligustrum lucidum
Ligustrum lucidum was once harmed by the pink scale, which caused the death of a large area of Ligustrum lucidum.
2018-10-21 -
How to control scale insects in privet hedge
In recent years, with the application of Ligustrum lucidum and Ligustrum lucidum in urban greening, diseases and insect pests on privet have become a major problem in garden maintenance and management. The scale insects occurring on the greening plants of Ligustrum lucidum are mainly white wax scale. It is reported that Kang's pink scale once occurred on the hedge of privet in Hebei Province. The identification characteristics and control measures of white wax scale are introduced as follows: the distribution and damage of white wax scale Ericeruspela (Chavannes) belongs to Homoptera, Coccidae. It is widely distributed in China. For
2019-01-16 -
Eight common problems affecting the appearance quality of bagged emerald pear and their solutions
Emerald is a new pear variety bred by Zhengzhou Fruit Tree Research Institute. It is a hybrid between the new century and Zaocu. In the past six years of bagging cultivation through high grafting head in 2000, it has been found that this variety is an early-maturing pear variety with good quality because of its positive fruit shape, smooth fruit surface, milky white pulp, crisp, juicy and few stone cells. However, in the production of bagged pears, it is often found that there are some abnormal phenomena affecting the appearance and quality of fruit, such as black wrinkle, fruit peel, tiger skin, green fruit face, black spots, cracks, deformities and so on. For this reason, we have carried out investigation and analysis, and put forward a solution.
2019-01-16 -
"five small pests" scale insects which medicine is the most effective? What are its natural enemies?
Scale insects, also known as scale insects, mainly harm all kinds of fruit trees, flowers, succulent plants and other plants, often gather on branches, leaves and fruits, absorb plant juice for a living, and cause plant death when they are serious. today, the editor will introduce to you what drugs are most effective for scale insects.
2020-11-09 Five small pests scale beetle use what medicine is the most effective -
Pear planting: how to manage pear trees in August?
How to manage the pear tree in August? Please introduce the management methods of pear trees in August can refer to the following methods for management: 1. Harvest: Bali, 20th century, August crisp, Cuifu pear, lucky water, red perfume and other medium-maturing varieties are harvested, and late-maturing varieties are ready. 2. The backbone branches of young trees are angled and.
2018-07-18 -
Control methods of scale insects in mango
Control methods of scale insects in mango
2019-03-19 -
How should Yali pear be managed after it is fruited?
How should Yali pear be managed after it is fruited? Please give guidance to Yali pear results, you can refer to the following methods for management: first, fertilizer and water management. This period is the perfect period of flower bud differentiation, and the demand for fertilizer is more urgent, so we should pay close attention to the application of quick-acting fertilizer. According to the size of the tree and the amount of fruit, each plant is topdressing with high nitrogen and low phosphorus.
2018-09-10 -
Prevention and Control of Diseases and insect pests before bagging of early Spring Pear
The disease and insect began to move before and after the germination of pear trees in early spring, and the bagging of pear orchards brought a lot of inconvenience to the spraying work. Therefore, pest control before bagging is the key to pest control in bagged pear orchard. In this period, we should focus on strengthening the control of pear planthopper, pear aphid, red spider and so on. (1) strengthen soil, fertilizer and water.
2018-09-15 -
The latest control methods of mango scale insects
Scale insect is one of the main pests of mango, which seriously affects the yield and quality of mango and causes huge losses to the economic benefits of fruit farmers. So how to control mango scale insects? Let's take a look at the detailed introduction with the editor. 1. Scale insects with harmful symptoms
2020-11-10 The latest mango scale shell control methods is -
Proper management during the expansion period of late-ripening apples in August helps to increase yield
Proper management during the expansion period of late-ripening apples in August helps to increase yield
2018-07-14 -
Where is the origin of Qiuyue pear?
The flesh of Qiuyue pear is white and bright, like sheep fat, the water is very sufficient, and it is very smooth to eat. So where is the origin of Qiuyue pear? Where is the origin of Qiuyue pear? Qiuyue pear is produced in Japan and is a hybrid pear variety introduced from Japan. Master
2020-11-08 Autumn moon pear origin where autumn moon flesh snow white -
What are the benefits of pear fruit bagging? What are the technical points of operation?
There are many varieties of pears, which are planted in the north of China, and the requirements for the planting environment are relatively high. In the process of planting pear trees, bagging is often used in the fruiting period to increase the economic benefit and commerciality of pears. Let's take a look.
2020-11-08 Pear fruit covers bags what benefits operation technology key points which -
Brief introduction of fruit bagging technology of pear
1. Bagging effect: it can improve fruit quality, control fruit diseases and insect pests, reduce pesticide residues and increase fruit storability. two。 Selection of paper bags: suitable paper bags should be selected according to different varieties, different climatic conditions, different bagging purposes and economic conditions. The single-layer bag is suitable for the varieties of green pear, and the paper bag with strong shading is suitable for the varieties with large and dense fruit spots. Among Japanese pear varieties, Fengshui pear should use Kraft paper single-layer bag coated with paraffin. Xingshui should use green inner layer and outer white black outer layer.
2019-01-16 -
Standardized cultivation techniques of Hutai No. 8 grape
Hutai No. 8 grape standardized cultivation technology Hutai No. 8 is a dual-purpose variety of fresh food and processing from Europe and America. It is suitable for planting in areas with annual effective accumulated temperature of 3800 ℃ and frost-free period of more than 180 days, and is resistant to downy mildew, gray mold and anthracnose. Nagao.
2018-06-11 -
High efficient cultivation techniques of wide row and close planting of pear
Pear wide row dense planting and efficient cultivation techniques 1 the garden should be established in places with flat terrain, light loam, good fertility and good irrigation conditions. Soil preparation in the autumn of 2010, trenching machines were used to dig planting ditches with deep 80cm and wide 80cm, per 666.
2018-05-28 -
Common diseases and insect pests of planting pear trees and their control measures
Pear orchard diseases and insect pests are also one of the very important aspects, in addition to recording the types and hazards of diseases and insect pests, as well as the types, doses, times and techniques of the use of pesticides. How to make rational use of pesticides plays an important role in the prevention and control of diseases and insect pests. First of all, prescribe the right medicine to the case.
2018-09-07 -
Key factors and control measures for the occurrence of main heart borer in apple
Key factors and control measures of the occurrence of main heart borer in apple apple is the largest fruit in China, and its cultivated area and yield rank first in the world. In the 1990s, the state implemented pollution-free agricultural production in order to control fruit diseases and insect pests.
2018-06-22 -
How to control common diseases and insect pests of Magnolia
Common diseases of Cymbidium and their control methods: 1. Soft rot: also known as rot disease, wiping head disease and so on. Most of them occur on the lower leaves, and at the beginning, the disease spots show dark green water stains, and then the disease spots spread into pieces, and the diseased leaves rot and become soft and droop, spreading to the root system, resulting in the lodging of the whole plant and the shedding of the heart leaves.
2019-03-03