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How to control broad mites in greenhouses and sheds? Understanding the occurrence pattern is key
In greenhouse fruit and vegetable production, curled and shrunken growing points of plants, deformed and cracked fruits are often seen, causing serious losses to production. Because the temperature and humidity inside the greenhouse are very suitable for the growth and reproduction of broad mites, and fruit vegetables are their main targets, and the mites are extremely small and invisible to people, timely control is impossible. Therefore, in recent years, the area of occurrence and damage has been growing larger and larger, which should attract great attention from producers. Broad mites belong to the class Arachnida, order Acariformes, family Tarsonemidae, and are harmful microscopic pests. They mainly damage cucumbers, eggplants, and tomatoes among greenhouse vegetables.
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Methods for Controlling Underground Pests of Codonopsis pilosula and Key Technical Points
The main underground pests harming Codonopsis pilosula are white grubs, cutworms and mole crickets; the above-ground pest is spider mites. Control methods for underground pests: use poisoned soil and poisoned bait to lure and kill them. Poisoned soil preparation: use 0.5-1.5 kg of 35% endosulfan per mu, 15 kg of soil, mix and scatter among the seedling roots; poisoned bait preparation: use 1 kg of roasted cake meal per mu, add 35 g of trichlorfon, mix well with water, scatter on the bed surface and beside the beds, in the furrows or on the ridges. Control methods for above-ground pests: the above-ground pest of Codonopsis pilosula is spider mites, generally
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Why Are Fragrant Pears So Precious? You'll Understand After Reading This
Korla fragrant pears have a history of more than 2000 years. Their shape is like a spindle, and the skin is bright and glossy, with a faint blush amid the emerald green, making them pleasing at first sight. Fragrant pears have thin skin and high water content, so great care must be taken during harvesting. If the picker's nails are long and slightly scratch the pear during picking, such pears cannot be sold as commercial pears. To avoid bruising more fragrant pears, ripe fragrant pears are best picked immediately. Before packaging, fragrant pears must also be graded. Special-grade pears are those above 120g, first-grade pears are those above lO
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Brewing wine from fish gives exceptionally high nutrition; the nutritional value of fish wine should not be underestimated
People who drink alcohol all know that fish is a delicious accompaniment to wine, yet few people know that fish itself can also be used to brew wine, and its nutritional value is several times higher than that of ordinary wine. In China's alcohol market, fish wine produced in Dalian has attracted people's attention. Dalian people not only love seafood, but are also good at finding new ways to enjoy seafood products. The fish wine, which can be called a unique wonder of China, was developed through the dedicated research of Dalian native Sun Keman. The alcohol industry's authorities evaluate fish wine as follows: it has changed China's traditional winemaking process of several thousand years and opened up a new world for the global alcohol industry
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How to manage garlic under plastic mulch after it turns green again? Remember these key points
1. Topdressing and watering. From late February to early March, temperatures rise and garlic under plastic mulch begins to turn green again. Because plastic mulch has a heat-preserving and moisture-retaining effect on the soil, generally, when garlic under plastic mulch has been watered thoroughly before winter for overwintering, it should not be watered early in spring, to prevent the soil temperature from dropping. If there is a spring drought and the soil lacks water, water once in early to mid-March. Remove the mulch in April, weed, loosen the soil, apply topdressing, and water. Apply 15-20 kg of urea or 30-40 kg of ammonium bicarbonate and 10-15 kg of potassium sulfate per mu. After fertilizing, irrigate once thoroughly. Appropriately control watering in the later stage. Keep the field
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What variety is the American black sweet potato? An article to help you understand
The American black sweet potato is a new black-red sweet potato variety introduced from the United States. The leaves are heart-shaped, without notches, with short vines (70-100 cm long), many branches at the base, and the top three leaves are purple-red. Each plant produces 4-6 tubers, each weighing 100-500 grams, with a maximum of 1 kg. It produces many and uniform tubers. The general yield per mu is: spring sweet potatoes 4000-5000 kg, summer sweet potatoes around 3000 kg. The tubers are spindle-shaped, with purple-black skin like dragon shells, and purple-red flesh, beautiful and attractive. After cooking, they are entirely purple-black, sweet, fragrant, mealy, and sandy,
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What kind of bacterium is Streptococcus suis? Understanding the characteristics of this pathogen
Streptococcus suis belongs to the genus Streptococcus. The cells are round or oval, less than 2.0 mm in diameter, generally arranged in chains or in pairs, and stain Gram-positive. The colonies are small, grayish-white and translucent. Most pathogenic strains are capable of hemolysis. Streptococcus suis has 35 serotypes (1-34, 1/2) as well as some untypeable strains. Among them, the four serotypes 1, 2, 7 and 9 are highly pathogenic. Muramidase-released protein (MRP) and extracellular factor (EF) are
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What are the cultivation requirements for Aconitum carmichaeli? Read this article to understand the growing techniques
Cultivation requirements for Aconitum carmichaeli
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