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What are the control methods for the 28-spotted ladybird beetle (Henosepilachna vigintioctopunctata)?
1. Morphological characteristics: The adult is yellowish-brown and hemispherical. The pronotum usually bears 6 black spots, and each wing cover has 14 nearly round black spots of two sizes, with the black spots not connected at the suture between the two wing covers. The egg is bullet-shaped, yellowish-white when first laid and later brown, with the eggs in an egg mass arranged rather densely. The newly hatched larva is pale yellow, later turning white, spindle-shaped, with many white branched spines on the body segments, and the bases of the branched spines have dark brown rings. The pupa is oval, yellowish-white, with black markings on the back, and the posterior end is wrapped in the cast skin of the last-instar larva. 2. Life habits and
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How to control lawn beetles? Detailed explanation of control techniques
Maoming City is located in the southwest of Guangdong Province, with a warm and humid climate. The green spaces in the city have large areas of lawn, with the main varieties being Taiwan grass and large-leaf carpetgrass, etc. These special geographical and plant conditions cause beetles to occur frequently in our city, and sometimes in very large numbers, which causes great harm to the growth of plants and the landscape of the city's public green spaces. After many years of practice, the occurrence and control techniques of lawn beetles in our city are introduced as follows: I. Beetle species and morphological characteristics: After many years of observation, the beetle species that cause relatively serious damage on lawns in this city are:
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Identification and Control Methods for the Tea Twig Bark Beetle
One of the boring pests of tea stems and branches, belonging to Coleoptera, Scolytidae, with the scientific name Xyleborus fornieatus Eie. Distribution and damage: In China it occurs more frequently on Hainan Island and is a relatively threatening pest in tropical tea areas, boring into and damaging the stems and branches of tea, rubber, coffee, and other plants. Morphology: The adult is a small beetle, body length 2.4mm, cylindrical. The pronotum is particularly well developed, with a raised dorsal surface; the surface of the forewings has several rows of dense punctures, and the wing tips slope downward, oval-shaped, off-white. Young
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Control Methods for the Boxwood Narrow Jewel Beetle
Large-leaf boxwood (Euonymus japonicus) is a tree species widely used for landscaping. In recent years in the Nantong area, large-leaf boxwood has been found to die off, initially in scattered patches and gradually developing into large areas of dieback. Breaking off dead trees at the root collar revealed insect-bored tunnels. Observation showed this to be damage by the narrow jewel beetle. The large-leaf boxwood narrow jewel beetle belongs to the order Coleoptera, family Buprestidae, genus Agrilus. This insect's larvae bore into and feed on the stems of large-leaf boxwood, weakening the plants until they die. I. Morphological Characteristics Adult: body length 5-7 mm, compactly built, head and thorax dark brown
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Ecological Habits, Damage and Control Methods of the Striped Flea Beetle
The striped flea beetle is an ancient pest of cruciferous vegetables. Farmers are no strangers to it, but they do not understand its ecology and the metamorphosis of its life cycle, because the adults live on the leaves above ground, while the eggs, larvae and pupae all live in the soil. Most farmers only control the adults and
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How to raise blister beetles well? Mastering these breeding techniques is key
How to raise blister beetles well
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How to control powdery mildew, leaf spot, aphids and scarab beetles on cypress vine?
Although cypress vine is very tenacious and has strong adaptability to the environment, during cultivation it can sometimes become infected with pests and diseases due to neglect of management, sudden environmental changes and other reasons. Once this happens, the consequences can be unimaginable. Here, the editor will tell you a few common pest and disease control methods for cypress vine.
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Occurrence Patterns and Control Methods of the Beet Armyworm Pest
Occurrence Patterns and Control Methods of the Beet Armyworm Pest
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