-
A Detailed Guide to Controlling Common Pests and Diseases of Osmanthus
How do you control common pests and diseases of osmanthus? Methods wanted. The pests and diseases of osmanthus trees include the following: 1. Leaf spot: it mainly damages the leaves, starting as small brown spots; the lesions are round or irregular, later gray to grayish white in the center with reddish-brown edges, and dark gray mold-like growth appears on the lesions. High temperature and high humidity are often the triggers, and it spreads through wind and rain, causing infection; after October the disease subsides. Control: 1) In winter, prune off diseased leaves and clear away fallen diseased leaves, and burn them in a centralized manner; 2) In early May, spray 1:2:100-200 Bordeaux mixture, after which you can spray 50% benomyl 1000 to 1500 times dilution or pyrazophos 500 times dilution or 70% thiophanate-methyl 1000 times dilution.
-
What diseases need to be prevented and controlled during lotus root cultivation?
What diseases need to be prevented and controlled when growing lotus root? Please give an introduction. Lotus root is a high-yield, high-efficiency aquatic cash crop and a vegetable variety commonly eaten by the general public. It is widely cultivated in various regions, and with the adjustment of industrial structures in various places, its cultivation area tends to keep expanding. In recent years, lotus root diseases have become increasingly serious...
-
What diseases should be prevented and controlled when growing tomatoes in summer?
What diseases should be prevented and controlled when growing tomatoes in summer? Please advise. For reference, the following diseases should be prevented and controlled when growing tomatoes in summer: Viral disease: high temperature and drought are the primary conditions for the disease to occur. The suitable temperature for viral disease is between 38-43°C; below 35°C or above 45°C is not conducive to the disease. In daily cultivation management, ...
-
How should pests and diseases be controlled in the late growth stage of rice?
How should pests and diseases in the late stage of rice be controlled? Please provide guidance methods. Pests and diseases cause serious damage in the late stage of rice. The control methods can refer to the following: 1. Sheath blight: The disease has recently been rising faster. In a general survey of each town on September 10, the average rate of diseased hills was 13.7%, and the rate of diseased plants was 3.3%. The disease situation has clearly accelerated compared with the previous period...
-
Why does rice produce empty and blighted grains, and how should it be prevented and controlled?
Why does rice produce empty and blighted grains, and how should it be prevented and controlled? Please give a detailed introduction. Under normal conditions, the rate of empty and blighted rice grains is generally 10%-20%, and in severe cases can reach 40%, which greatly affects rice yield. 1. Causes of formation. The rate of empty and blighted rice grains is mainly affected by 3 factors. 1. Climatic...
-
200 sq m courtyard garden photo sharing, bestie exclaimed it feels like strolling in a park
200 sq m "courtyard garden" photos, bestie: coming to your home is like visiting a park! Since childhood, the impression given is - quiet! Likes solitude, does not argue with others, does what she likes. Just like now, likes to write a little in spare time...
-
Ginger Cultivation Techniques: What Diseases of Large Ginger Need to Be Prevented and Controlled?
What diseases of large ginger need to be prevented and controlled? Please give an introduction. The following introduces several common diseases of large ginger and their prevention and control methods: Ginger blast: mainly spread by irrigation water and underground pests, and can occur from the sprouting and emergence of seed ginger to before the harvesting of ginger. This disease mostly occurs in high-temperature, frequently rainy, and waterlogged fields. Prevention and control: ginger...
-
What are the methods for controlling chrysanthemum diseases?
How should chrysanthemums be managed in August? Please advise. The chrysanthemum, also known as jiuhua and huanghua, is a perennial herbaceous plant of the genus Chrysanthemum in the family Asteraceae. It is a traditional flower loved by the people of our country, one of the world's four major cut flowers, and also a commonly used traditional Chinese medicine, with the flowers used medicinally to improve eyesight and remove toxins, and to dispel wind and clear heat. It is cultivated throughout the country....
-
What are the methods for preventing and controlling pests and diseases of jujube trees in autumn and winter?
Please introduce the methods for preventing and controlling pests and diseases of jujube trees in autumn and winter? Detailed operation methods would be best. For the methods for preventing and controlling pests and diseases of jujube trees in autumn and winter, you can refer to the following methods: 1. Clean the orchard: Pests and diseases such as jujube rust, green plant bug, and jujube slug moth overwinter in fallen branches, leaves, or weeds under the trees. Therefore, after the jujube trees shed their leaves...
-
Which diseases need to be prevented and controlled in cotton cultivation?
What diseases need to be prevented and controlled when growing cotton? Please give an introduction. Cotton has different diseases at each stage of growth. The following introduces the diseases at the cotton seedling stage and their prevention and control for reference: 1. Seedling stage disease - damping-off (seedling death). After cotton seedlings emerge, yellow-brown lesions appear at the base of the stem (where it meets the soil surface),...
条件筛选