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What to Do When Poplar Trees Get Canker Disease? A Detailed Guide to Prevention and Control Methods
Poplar is the general term for deciduous trees of the genus Populus in the willow family (Salicaceae). The genus contains more than 100 species, mainly distributed in the temperate and cold zones of Europe, Asia, and North America, as well as the Mediterranean coastal countries and the Middle East. China has more than 50 species. The wood is used for civil construction materials, furniture production, matchsticks, sawn timber, papermaking, and is also used for...
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Which herbicides can be selected for weed control in tobacco fields?
Which herbicides can be used for weed control when growing tobacco? Please explain. Tobacco seeds are small, and seedlings grow slowly, so they are often harmed by weeds. The main weeds include: green foxtail, Chinese sprangletop, late barnyardgrass, goosegrass, shortawn foxtail, cocklebur, flatsedge, cleavers, common chickweed, plantain, dandelion, and others. Weed control in tobacco fields...
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What are the characteristics of the black locust seed chalcid, and how can it be controlled?
The black locust seed chalcid mainly damages black locust (Robinia pseudoacacia). Its larvae feed on the seeds inside the pods. Adult: body length about 3 mm, black, antennae yellowish-brown, thorax raised, wings transparent, covered with short spines, wing venation simple, slightly yellow. Egg: spindle-shaped, with a long slender stalk at one end. Larva: mature body length about 4 mm, milky white, head inconspicuous, mandibles brown, body curved. The black locust seed chalcid has 2 generations per year. It overwinters as a larva inside the seed. In the following year it generally pupates between April and May, and adults emerge and lay eggs after early to mid-May
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