-
Cultivation Techniques and Pest and Disease Control Methods for Crown Daisy
I. Field Identification: Crown daisy downy mildew can occur from the seedling stage to the adult plant stage. In the early stage, chlorotic yellow spots with indistinct edges appear on the leaves, and the underside of the lesions is densely covered with a white to pale yellowish-white mold layer, and the diseased leaves wither rapidly. As the disease progresses, the upper surface of the diseased leaves in the later stage is also densely covered with a white to pale yellowish-white mold layer. In severe cases...
-
Detailed Explanation of Control Methods for the Three Major Diseases of Navel Orange
When navel orange was top-grafted onto mature Satsuma mandarin trees, the fruiting characteristics appeared normal in the first two years, but thereafter varietal degeneration symptoms appeared year by year: shorter shoots, smaller leaves, lighter leaf color, weaker tree vigor; lower fruiting rate, smaller fruit size, dull and lusterless peel, weaker flavor, and declining fruit quality. In production practice...
-
A major signal has just been released, and the industry may be facing large-scale adjustments
Introduction Recently, Nobel Prize-winning economist and American economist Thomas Sargent stated: China's economy is undergoing a consumption upgrading process, shifting from an investment-driven model to a consumption-driven model. During this consumption upgrading process, enterprises...
-
What are the common diseases of oilseed rape? Detailed explanation of control methods
Common diseases of oilseed rape and their control
-
Control methods for common pests and diseases of wheat in spring
Spring is a critical period for wheat growth and also a time when diseases and insect pests occur frequently. Therefore, spring management of wheat should pay attention to the prevention and control of pests and diseases. Below are several common wheat pests and diseases in spring and their control methods: Wheat rust and powdery mildew: in areas where the disease is severe and obvious disease centers have formed, spray pesticide promptly,...
-
What to Do When Broccoli Gets a Viral Disease? Disease Patterns and Key Control Points
Viral disease is a major disease of broccoli, occurring commonly and severely. The disease patterns and control methods of this disease are described below: 1. Disease patterns In areas where cruciferous vegetables are not grown in winter, the virus overwinters on stored Chinese cabbage, cabbage, radish or overwintering spinach; when cruciferous vegetables are grown in winter, ...
-
Early prevention and early treatment of wheat pests and diseases in spring is key
From the perspective of water conservation, it is recommended to water wheat twice in spring. For wheat fields that have normal growth after winter irrigation, if the soil moisture is good, the green-up water can be skipped. The first spring watering of wheat should be at the stem elongation to jointing stage (late March to early April), and the second spring watering at the heading to flowering stage (late April to early May). The specific watering time...
-
What is black spot disease during cantaloupe storage?
Black spot disease is one of the main diseases in cantaloupe storage, mainly occurring in the late storage period. Brown, slightly sunken round spots form on the melon surface, gradually expand and turn black, and may even become irregular in shape. The flesh beneath the spots becomes necrotic, black, and spongy, and separates easily from the healthy flesh. This disease strikes when the cantaloupe matures and ages and its disease resistance gradually...
-
Symptoms and Control Methods of Root-Knot Nematode Disease in Hami Melon
Root-knot nematode disease is an important disease of Hami melon, occurring and distributed in some areas. It can develop both in protected cultivation and in open fields, with more severe incidence in autumn. Infection at the seedling stage has a great impact on production, and after onset the diseased plant rate often reaches more than 60%, significantly affecting Hami melon production. The symptoms mainly damage the root system, producing on the main root and lateral roots...
-
Symptom Identification and Control Methods for Kidney Bean Leaf Spot Disease
It mainly affects the leaves. The leaf spots are round or nearly round, mostly occurring at the leaf tip or leaf margin, with brown edges and a light brown to grayish-brown center; when humid, small black dots are scattered or arranged in concentric rings on the spots. Control methods: strengthen management inside the greenhouse (such as frequently applying foliar fertilizer such as Fengshou No. 1), especially controlling air humidity. Then there is chemical control, ...
条件筛选