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Pear Tree Spring Pest Control Methods and Technical Key Points
Pear tree spring pests and diseases include: pear fruit borer, aphids, red spider mites, pear psylla, stink bugs, leaf-mining mites and black spot disease, etc. Timing and measures of control: from early spring to before flower buds swell, clean the orchard and scrape tree bark. Lay plastic sheeting under the tree, then scrape off the raised and coarse bark on the trunk and large branches, but do not damage the new bark. For the coarse vertical bark at the branch forks, scrape carefully. Collect the scraped bark, larvae, eggs, etc. and bury them deep or burn them. Knock down dead leaves and remaining dried fruit from the tree and remove them from the orchard for destruction, then spray the whole tree once with lime sulfur mixture.
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How to manage pear trees in early spring? Sharing growing experience
Rational distribution of stored nutrients in the tree body and reducing useless consumption is one of the important techniques for promoting normal tree growth and producing high-quality fruit. During this period, measures such as bud removal and flower bud thinning can reduce useless consumption in the tree body, and this is a relatively important point in early spring management of pear trees.
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How to prevent late spring cold damage during the pear tree flowering period
Spring late cold spells and frosts are very harmful to pear trees. Generally, when pear trees encounter a low temperature of -4.0°C at the bud stage or -2.3°C to -2.9°C at the flowering stage lasting more than half an hour, the flower organs will suffer freezing damage, usually manifested as poor pollination, dried and dead stigmas, and browned filaments or
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Orchid Care Methods and Precautions in Early Spring
Orchid (scientific name: Cymbidium ssp.): epiphytic or terrestrial herb, with several to many leaves, usually borne at the base of the pseudobulb or on the lower nodes, distichous, band-shaped or rarely oblanceolate to narrowly elliptic, with a broad sheath at the base that usually wraps around the pseudobulb, and articulated. Racemose inflorescence
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Detailed Explanation of Key Technical Points for Spring Management of White Peony (Paeonia lactiflora)
White peony (Paeonia lactiflora) is a perennial herbaceous vine; the root is cylindrical, grayish-black, about 8 mm in diameter; the stem is covered with two rows of hairs. Leaves are opposite, membranous, ovate-lanceolate, 7-10 cm long, 4-8 cm wide at the base, apex long-acuminate, base deeply auriculate-cordate, leaf auricles rounded, drooping, both
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Key Technical Points for High-Yield Spring Cultivation of Carrots
The carrot (carrot), also known as red radish, clove radish, and hulu fujin, and also called hulu fu, red beet, yellow radish, etc., is an umbelliferous biennial herbaceous plant, grown as a vegetable for its fleshy root. Every 100 grams of fresh carrot weight contains 1.67-12.1 mg
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Detailed Explanation of Key Points for Early Spring Greenhouse Cultivation Techniques of Winter Melon
Winter melon (scientific name: Benincasa hispida (Thunb.) Cogn.) is an annual herbaceous plant with tendrils on the stem that can climb and vine, large leaves, and yellow flowers. The fruit is spherical or elongated cylindrical, with hairs and white powder on the surface, and dark green or light green skin. It is a relatively common vegetable.
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Detailed Explanation of Standardized High-Yield Cultivation Techniques for Spring Celtuce
Celtuce, namely stem lettuce (Lactuca sativa var. angustana), has a crisp and tender fleshy stem with a delicious flavor. It can be stir-fried, served cold, blanched in soup, pickled, and more, making it a fine vegetable much favored by consumers. Celtuce, also known as stem lettuce, is a variety of the lettuce species in the genus Lactuca of the Asteraceae family that can form a fleshy tender stem, and is an annual or biennial herbaceous plant.
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Key Technical Points for Spring Greenhouse Cultivation of Celtuce
Celtuce, also known as asparagus lettuce, is a variety of Lactuca sativa in the Asteraceae family, genus Lactuca, that can form a fleshy tender stem; it is a biennial or annual herbaceous plant. Also called stem lettuce, asparagus lettuce, green lettuce, and lettuce vegetable. Harvest period: January to April. It originated in Central or North China. The aboveground stem is edible; the stem skin is white-green,
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Key Cultivation and Management Techniques for Spring-Sown Rapeseed
Rapeseed, also called oil bok choy or bitter greens, is a plant of the Brassicaceae family and Brassica genus, native to our country. Its stems are dark green, and its leaf stalks resemble those of bok choy. It is a variety of Brassicaceae bok choy, and its flowers are yellow. In agronomy, the various plant species whose seeds contain oil are collectively called rapeseed. Currently oil
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