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What are the control methods for tea tussock moth in tea gardens?
The tea tussock moth, also known as the tea yellow tussock moth and the head-swaying worm, belongs to the family Lymantriidae of the order Lepidoptera. It is distributed in every tea-producing province nationwide and is an important pest in China's tea regions. It mainly damages tea leaves and can also damage oil tea, citrus and others. Young larvae bite and feed on old tea leaves, leaving a semi-transparent membrane, and later bite young shoots and mature leaves, leaving notches. The larvae feed in groups, often dozens to hundreds gathering on the underside of leaves to feed. When the outbreak is severe, tea leaves are eaten almost completely.
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Identification and Control Methods of the Tea Leaf-tier Moth
One of the boring pests of tea branches and trunks, also known as the tea branch sickle moth and tea stem borer, belonging to the order Lepidoptera, family Yponomeutidae (leaf-tier moths), with the scientific name Casmarapatrana Meyrick. It is distributed in all tea-producing provinces of China. Morphology: The adult has tea-brown body and wings, with a body length of 15-20mm and a wingspan of 32-40mm. The forewings are nearly rectangular, with a grayish-black outer margin, a large earth-yellow patch on the inner side, and a small red protruding spot near the center of the wing base. The egg is horseshoe-shaped, about 1mm long, and pale cream-yellow. The larva is slender, with a yellowish-white and slightly
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What are the occurrence patterns of the privet hawk moth (Clanis bilineata)?
Occurrence patterns of the privet hawk moth (Clanis bilineata): In Hebei, Shandong, Jiangsu, Anhui and other places, 1 generation occurs per year, and the mature larvae burrow into the soil at a depth of 10 to 15 cm to overwinter. In early to mid-June of the following year, pupation begins. The pupal stage lasts 10 to 15 days. In early to mid-July, adults emerge, with mid-month being the peak emergence period. During the day, adults rest quietly among branches and leaves, and begin activity in the evening; adults are phototactic. Generally, egg laying begins 3 hours after mating, with eggs mostly laid on the underside of leaves and a few on the upper side. Each female lays an average of about 350 eggs. Adults live 7 to 10
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What are the morphological characteristics of the Privet Hawk Moth?
The Privet Hawk Moth is also called the Soybean Hawk Moth. It mainly damages black locust (Robinia pseudoacacia), and also harms soybeans, wisteria, and so on. The larvae feed on the leaves, and in severe cases can strip the trees bare. Adult: body length 40-50 mm, wingspan 100-120 mm, body and wings yellow-brown, head and pronotum dark purple; near the center of the forewing costa there is 1 pale white semicircular spot, the wing surface has 6 wavy transverse lines, and the wing apex has 1 dark brown oblique line dividing the apex angle into two parts; hindwings dark brown, with the middle part deep brown. Egg: oval, yellow-white. Larva: final instar about 80 mm long
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Biological Characteristics and Control Methods of the Black-spotted Looper Moth on Black Locust
Black-spotted looper moth on black locust. It belongs to the family Geometridae, order Lepidoptera, and is also known as the black locust looper. It is distributed in the black locust forest areas of the old course of the Yellow River in Anyang, Puyang, Xinxiang and Kaifeng cities of Henan Province, mainly damaging black locust (Robinia pseudoacacia), and in outbreak years it can also damage jujube trees and crops. This insect is voracious, and in a short time it can eat all the leaves of entire branches and entire trees. In hot and dry years, it can strip the leaves bare 2 to 3 times a year, causing the upper parts of the trees to die and new shoots to sprout from the middle and lower parts of the trunk, causing serious harm to tree growth. Control methods: (1) Establish
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Identification Methods and Control Techniques for Tea Geometrid Moths
Geometrid moths, commonly known as inchworms, are insects of the order Lepidoptera, family Geometridae. There are many species of geometrid moths in tea gardens, mainly the tung tree geometrid, the silver geometrid, the grey geometrid and the camellia geometrid, among which the tung tree geometrid occurs most frequently. The tung tree geometrid, also called the large geometrid, is the largest geometrid species occurring in tea gardens. Its larvae cause damage, with a large appetite and many host plants; in severe cases they eat all the buds and leaves of the tea garden, leaving bare stems. The adult of this insect is silvery grey, with a body length of 20-25 mm and a wingspan of 50-70 mm. The wing surface is densely covered with small black dots, the forewings have 3 relatively distinct yellow
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Identification and control of the Pinellia ternata hawk moth
It occurs in summer; the larvae chew and feed on the leaves, and in severe cases they can eat all the leaves bare. Control methods: (1) Spray with 800-1000 times dilution of 90% trichlorfon crystal, once every 5-7 days, for 2-3 consecutive applications. (2) Hand-pick the insects.
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Identification and Control Methods of the Pryeria sinica Moth on Japanese Euonymus
Scientific name: Pryeria sinica Moore. Morphological characteristics: The adult moth has a body length of about 12 mm and a wingspan of about 30 mm. The head, thorax and antennae are dark brown. The male moth's antennae are feathery, while the female's are pectinate. There are long orange-yellow hairs on the thorax dorsum and both sides of the abdomen. The forewings are semi-transparent, but the basal 1/3 of the wing is yellow, the rest is dark gray, and the veins are dark brown. The hindwings are yellow at the base. The eggs are oval and flat, initially yellowish-white, gradually turning light brown. The larva is about 20 mm long, with a small dark brown head and a yellow-green body, with sparse white fine hairs on the sides and back.
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Occurrence Patterns and Control Methods of the Euonymus Leafroller Moth
The Euonymus leafroller moth belongs to the order Lepidoptera, family Zygaenidae. Its larvae damage the tender leaves and shoots of host plants, feeding on the foliage; in severe cases they strip the branches bare, or even cause entire stands to wither and die. In the Jining region, the Euonymus leafroller moth has one generation per year and overwinters as eggs on the host's branches and shoot tips. The overwintering eggs mostly hatch in mid-to-late March; in sheltered, sunny spots they can hatch 5-7 days earlier, and the hatching peak generally occurs around March 20. A single egg mass can finish hatching in 2-3 days, which coincides with the emergence of new leaves on the Euonymus. From late April to early May, the mature lar
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