-
How to Prevent and Control Sweet Potato Stem Nematode Disease? Detailed Technical Methods
Sweet potato stem nematode disease is a devastating disease in sweet potato production. It is highly destructive and spreads quickly. It can infect and cause damage during the seedbed stage, field stage, and storage stage, but it mainly infects the tubers. Affected sweet potatoes have brown, bluish skin with cracked patterns, and the tubers are light. Some tubers show no external abnormalities, but are hollow and pithy inside. This disease not only affects the quality of sweet potatoes, but also severely affects sweet potato yield.
-
Prevention Methods for Sweet Potato Cellar Rot and Storage Management Techniques
The biggest problem during sweet potato storage is cellar rot. Once cellar rot occurs, it may at best reduce the quality of the sweet potatoes, and at worst cause all the sweet potatoes in the cellar to rot, resulting in varying degrees of loss. Sweet potato cellar rot is mostly caused by physiological diseases and infectious diseases. Physiological diseases mainly
-
How to manage sweet potatoes in the mid-growth stage? Master these key points
Drought prevention and drainage: In most areas with high temperatures and abundant rain, the aboveground stems and leaves of sweet potatoes grow rapidly, and nutrients move upward rather than downward. At this time, attention should be paid to drainage, that is, promptly and quickly remove standing water from the field surface after rain to control excessive aboveground growth. If there is drought, watering is needed to prevent it, so that the tubers can rapidly expand in soil that is neither wet nor dry.
-
Prevention and control of chive rust must be timely
Chive rust mainly infects the leaves and flower stalks. Initially, small yellow spots appear on the epidermis, gradually developing into spindle-shaped or oval raised orange-yellow blister spots, often surrounded by a yellow halo. The blister spots expand and become relatively large; after the epidermis ruptures, orange-yellow
-
Detailed Methods for the Prevention and Control of Slime Mold Disease in Bamboo Fungus
Once bamboo fungus (Phallus indusiatus) is attacked by slime mold, the losses are extremely severe, and mushroom growers everywhere should pay attention to this. This article provides a brief introduction to the damage symptoms, causes of the disease, and prevention and control measures. 1. Pathogen: The pathogen of bamboo fungus slime mold disease is Comatricha pulchella (C. Bab) Rost, also known as the beautiful hair net. Its form consists of sporangia growing in groups, sometimes densely packed, stalked, oval to cylindrical, slightly pointed at the top, dark brown or rusty colored, with a total height of 0.7-1.5mm; the stalk is black, generally shorter than the sporangium, rarely reaching half of the total height; the cyst base membrane is thin and membranous, disc-shaped and solitary, or a group forming a continuous sheet; the columella is straight, gradually tapering upward, nearly reaching the top of the sporangium; the capillitium is dense, curved, dark brown, with main branches relatively thick, branches gradually thinning, with many connections, few free ends, spores spherical, brown when in masses, with a diameter of 6.5-8cm.
-
Prevention Methods for Deformed Fruit in Strawberry Cultivation
The main cause of deformed strawberry fruit is poor pollination and fertilization, but the degree of occurrence is related to factors such as variety, flower order, flower-visiting insects, temperature and humidity, and pesticide spraying during the flowering period. Therefore, to prevent the occurrence of deformed strawberry fruit in production, the following should mainly be considered
-
What to Do About Deformed Yams? Disease and Pest Control Measures for Growing Yams
Yam is a plant of the rootstock section of the Dioscoreaceae family, with nutrient-rich and delicious tubers. In recent years, with the adjustment of the agricultural industrial structure, the planting area in Yanzhou City has increased year by year, bringing considerable economic benefits to farmers. However, during yam cultivation, adverse
-
How to grow yam (Chinese yam) to prevent diseases effectively? Growing experience shared
1. Selecting disease-resistant varieties is an effective method for preventing and controlling yam diseases and pests. For example: choosing Taigu hairy yam can resist stem rot. When cultivating disease-resistant varieties, rational layout is needed, rotate varieties every 2-3 years, and pay attention to variety purification and rejuvenation. 2. Crop rotation can reduce or avoid yam
-
Prevention and Control Methods for Pepper Flower and Fruit Drop in Spring
Because spring temperatures vary greatly and remain unstable, peppers at the flowering and fruit-setting stage are easily affected by environmental conditions, leading to flower and fruit drop. There are many causes of pepper flower and fruit drop, including physiological ones and pathological ones. Peppers prefer air
-
How to prevent and control onion neck rot? Understanding the disease development pattern is key
1. Symptoms and characteristics: It mostly occurs during the maturity or storage period of onion bulbs. Besides onions, it can also infect other allium vegetables. If infected during the growing period, light brown lesions mainly appear on the leaf sheaths and the neck of the bulb, the internal tissue rots, and gray mold
条件筛选