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Control Methods for the Small Brown Planthopper at the Rice Heading Stage
The small brown planthopper (Laodelphax striatellus) not only transmits viruses that cause rice viral diseases such as rice stripe virus disease, but also congregates on the panicles to cause damage during the heading stage of late rice. To clarify the control efficacy of pymetrozine and other pesticides against the small brown planthopper at the heading stage of late rice and the application techniques, Cheng Qinhai and others from the Plant Protection Station of Haining City, Zhejiang Province, conducted field
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How to prevent and control rice purple sheath disease? Practical methods and key technical points
Symptoms After rice heading, dense pinhead-sized purple dots appear on the leaf sheath of the flag leaf, then gradually spread to most of the leaf sheath or the entire leaf sheath turns purplish-brown, especially obvious on the outer wall of the leaf sheath, sometimes infecting the inner wall or reaching deep into the stem. In severe cases, the flag leaf dies 7-10 days early.
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Wheat blossom midge can be controlled by broadcasting pesticide-treated soil at the booting stage
The wheat blossom midge overwinters as mature larvae in round cocoons in deep soil and can remain dormant for many years. In spring, when the soil temperature at 10 cm rises to about 7°C, which is when wheat begins jointing, the larvae break out of their cocoons and move toward the soil surface. In mid-April, wheat enters the booting stage, and the larvae
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How to prune cherry trees? Common methods for courtyard planting
1. Heading back. Cutting off part of a 1-year-old branch is called heading back. According to the degree of heading back, it can be divided into light heading, moderate heading, heavy heading and very heavy heading. (1) Light heading. That is, cutting off less than 1/3 of the total length of the branch. On young trees, light heading is used more often, which can ease the growth vigor and help bear fruit earlier.
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What effect does thinning out have on pear trees when planting them?
Comparing thinning out with heading back, when the pruning amount is the same, thinning out is more conducive to flower bud formation than heading back, because after thinning out fewer long shoots are produced and more medium and short shoots are produced, which is beneficial to the early accumulation of nutrients, and the branches are relatively sparse, which is beneficial to ventilation and light penetration
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How to Behead a Leggy Graptosedum 'Bronze'? Propagation Methods Taught Along the Way
The success of growing succulents is not only about the yield, but more importantly, the quality of the succulents. Most succulent growers are like devoted mothers - as long as their own plants grow healthily, it doesn't matter whether they look perfect or not. But since succulent growing is a cultivation of personal aesthetics
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How to propagate Corpuscularia lehmannii? A guide to beheading and cuttings with illustrations
Corpuscularia lehmannii is a particularly lovely succulent; its leaves are plump and cute, emerald green in color, fresh and beautiful, with very high ornamental value. Corpuscularia lehmannii is also fairly simple to grow and grows quickly, and especially in conditions with insufficient sunlight it easily
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A Detailed Guide to Prickly Ash Tree Cultivation Techniques and Pruning Methods
Summary Heading cut: a light heading cut leaves only a small portion of the branch, a moderate heading cut is made at the sprouting point on the upper middle part of the spring shoot, a heavy heading cut is made on the lower middle part of the branch, and an extremely heavy heading cut is made at the weak-growing buds at the base of the branch. Thinning: remove weak branches and keep strong ones for concentrated pruning, cut vigorous branches to weaken branching, and prune large branches on a yearly basis.
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What Fertilizer Is Best to Apply at the Rice Heading Stage? Timing of Pesticide Application and Key Points for Pest and Disease Control
Heading is the phenomenon in which the fully developed ear of a cereal crop extends out from the top leaf as the stem elongates. It is the stage in which vegetative growth and reproductive growth advance vigorously together, and it is also the best period for topdressing. So, what fertilizer is best to apply at the rice heading stage? When should pesticide be applied
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How to best encourage budding after beheading a Peace Lily tree
How to encourage budding in a beheaded Peace Lily tree
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