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What are the methods for identifying pear tree stink bugs?
(1) Pear lace bug: ① Adult: body length about 3.5 mm, flat, dark brown. Head small, wings broad, compound eyes dark black, no simple eyes. Pronotum raised, with both sides protruding in a wing-like shape, semi-transparent, and both with net-like patterns. Forewings slightly rectangular; when at rest, the markings formed by the two overlapping forewings appear like the character "x". Hindwings membranous, white and transparent. Abdomen golden yellow, with black markings on it.
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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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Methods for Pest and Disease Control in Cherry Trees During Winter Dormancy
Using manual and agricultural methods, clean the orchard, eliminate overwintering sources of pests and diseases, effectively eliminate harmful organisms, and reduce the overwintering population base. 1. Sweep up fallen leaves: Fallen leaves are one of the main overwintering sites for many pests and diseases, such as the pathogens of cherry brown spot disease and black ring rot, which
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Detailed Explanation of Key Points of Fertilizer Spraying Technology for Cherry Cultivation
(1) Fertilizer spraying timing: Foliar fertilizer can be sprayed from after the cherry tree sprouts until before maturity, and even before leaf fall; (2) Fertilizer types: Any nutrient elements required by crops can be used as fertilizer spray types; (3) Purpose of fertilizer spraying: It is to supplement fertilizer to cherry trees through foliar spraying;
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Key Techniques and Precautions for Summer Pruning of Cherry Trees
One, pinching. Its purpose is to control vigorous shoot growth, increase the number of branches and branching orders, promote the transformation of branch types, and expand the canopy. This measure is mainly used on young trees and vigorous trees. The best time for pinching is during the rapid growth period of new shoots. When the new shoots reach about 20-25 cm in length,
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What to Do If Your Cherry Tree Won't Bear Fruit? Try These Solutions
There are many reasons for failure to bear fruit, specifically the following: 1. The climate may be unsuitable. 2. Improper cultivation and management, leading to excessively vigorous tree growth, with no flower buds formed, will also result in no fruit. 3. Severe pests and diseases or poor fertilizer and water conditions, insufficient stored nutrients in the tree, leading to poor flower bud development and severe flower and fruit drop during the flowering period; or due to continuous rainy weather or sudden low temperatures during the flowering period, resulting in poor pollination and fertilization.
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How to prevent and control gummosis in cherry trees? Growers need to master these methods
Symptoms Gummosis is an important disease of cherry trees, and its symptoms fall into two types: dry rot type and canker type gummosis. The dry rot type mostly occurs on the trunk and main branches. In the early stage, the lesions are irregular, dark brown, and hard on the surface, often causing gumming. In the later stage, the lesions become elongated, dry-shrunken and sunken, sometimes with cracking around them, and densely covered with small black dots on the surface.
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Key Management Techniques for Pomegranate Trees in Late Autumn and Early Winter
1. Fertilization. After harvesting the fruit in autumn, applying an appropriate amount of human manure and urine helps accumulate nutrients in the tree. The fertilization method is to dig a circular fertilization trench about 30-50 cm deep and about 40 cm wide at the outer edge of the tree canopy, or, centered on the main trunk of the fruit tree, dig radial fertilization holes 30 cm deep and 20 cm wide at intervals around the outer edge of the tree, and dig the trench and apply the fertilizer on the same day. The amount of fertilizer applied should be determined according to tree vigor, tree age, soil fertility, and the current year's yield. In autumn, pay attention to foliar topdressing, which should focus mainly on phosphorus and potassium fertilizers, with a total fertilizer solution concentration not exceeding 0.3%. For topdressing outside the roots, biogas slurry or decomposed manure water can also be sprayed.
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Experience in achieving high yield and high quality by covering greenhouse peaches with old film
Peach trees are light-loving fruit trees and are sensitive to light; when light is insufficient, the photosynthesis of the leaves cannot proceed normally. In places with sufficient light, flower buds are numerous and plump, and fruit quality is good; in shaded places, flower buds are shriveled and fruit quality is poor. Covering greenhouse peach trees with old film will cause
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What to Pay Attention to When Long-Shoot Pruning Peach Trees
Long-shoot pruning of peach trees is a new peach pruning technique that has been promoted and applied in recent years. It mainly uses thinning and long-shoot training, with very little heading back. Using this technique can make the tree upright and vigorous, with early fruiting, excellent quality, and high yield. However, in practical application, peach growers in various regions have not mastered the key points of this technique well and therefore have failed to achieve the desired results. To this end, we summarized the problems existing in production and, combined with practice, put forward some countermeasures for reference.
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