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What are the control methods for goji aphids?
Goji aphids, also called green honey aphids or honey bugs, belong to the family Aphididae. They cluster on tender shoots, flower buds, green fruit and other parts, sucking sap; infested shoots curl and shrink, and growth stalls. In severe cases, the surface of goji leaves, flowers and fruit is entirely covered by aphid secretions, affecting photosynthesis, causing early defoliation and resulting in heavy yield losses. Goji aphids produce about 15 generations a year, overwintering as eggs in branch crevices and bud axils; the following year in late April they hatch into stem mothers, reproducing by parthenogenesis and viviparity, and winged aphids appear in the second and third generations, reproducing and spreading in the field, with 5
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What are the control methods for the wolfberry rust mite?
The wolfberry rust mite belongs to the family Eriophyidae. Swarms of mites densely cover the leaves and suck the sap, causing the leaves to turn rust-colored and drop early. Adult mites overwinter in bark crevices, bud axils and other places. The following year, after the wolfberry leaves unfurl in mid-April, they begin their damaging activity, and they begin laying eggs in late April. Late May to late June is the peak period of reproduction. After that, because the leaves turn rust-colored and the nutritional conditions deteriorate, the number of mites drops greatly. From late July to early August, new leaves emerge and a second reproduction peak appears. In mid-September reproduction slows, and after leaf fall in October the adult mites move to
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Identification and Control Methods for Dactylium cobweb disease in lingzhi (Ganoderma)
DactyliumdendroidesFries belongs to the subdivision Deuteromycotina, class Hyphomycetes, order Moniliales, family Moniliaceae, genus Dactylium. 1. Morphological characteristics: The hyphae are pure white and cottony. The conidiophores are slender and sparse, with whorled branches arranged in a radiating pattern. The conidia are oblong, colorless, borne at the tips of sterigmata, solitary or in small clusters, mostly with 4 cells. 2. Disease development pattern (1) Transmission route: Dactylium lives in soil and is widely distributed in soils rich in organic matter.
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Symptoms and Control Methods of Aspergillus Disease in Lingzhi (Ganoderma lucidum)
Aspergillus belongs to the Deuteromycotina, Hyphomycetes, Moniliales, Moniliaceae, genus Aspergillus. There are many species of Aspergillus, and the most widespread harmful ones are Aspergillus flavus (A. flavus Link) and Aspergillus niger (A. niger Van Tieghem). 1. Morphological characteristics: The hyphae are colorless, septate and branched, shorter and thicker than those of Mucor. The conidiophores arise from specialized thick-walled swollen foot cells of the hyphae, unbranched, with the apex swelling into a vesicle. The surface of the vesicle produces radial
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Identification and Control Methods of Paecilomyces lucidus Disease
Paecilomyces belongs to the subphylum Deuteromycotina, class Hyphomycetes, order Hyphomycetales, family Hyphomycetaceae, genus Paecilomyces. The species commonly found in production is Paecilomyces variotii (p.varictBainier). 1. Morphological characteristics: The hyphae are white, transparent, and septate. The colony is earthy yellow and is often mistaken for Aspergillus flavus, commonly called yellow mold by mushroom growers. Conidiophores arise from aerial hyphae or cord-like hyphae; the phialides are slender and elongated, swollen at the base, tapering to a pointed tip, often curved, single to broom-like branched. Conidia are short cylindrical to long elliptical, smooth
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How to Control Termites in Ganoderma lucidum Cultivation? Detailed Methods
Termites, also called white ants, belong to the order Isoptera, family Termitidae. Termites occur mainly in hilly and mountainous areas, and are less common in plain areas. Termites are a large family, most abundant in tropical and subtropical regions. In the cultivation of Ganoderma lucidum and other edible fungi, ants mainly bore into and feed on log segments. Damage characteristics: termites bore into and feed on log segments, causing the bark and wood of the log segments to separate, inhibiting the growth of Ganoderma lucidum mycelium and the formation of fruiting bodies. This in turn reduces Ganoderma lucidum yield. Morphological characteristics: winged adults are 27-29.5 mm long, with a wingspan of 45-50 mm, head
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Identification and Control Methods for the Tea Bug and the Yellow-Spotted Bug
Distribution area: Morphological characteristics: The adult tea bug (Halys dentata) is about 15 mm long and 8-9 mm wide. The body is flattened and oval. Grayish-brown, with a slight purplish-red tinge. The antennae have 5 segments; segment 2 is longer than segment 3; both ends of segment 4 and the base of segment 5 are yellow. The thorax dorsum and forewings are densely covered with dark brown punctures. The eggs are cup-shaped and grayish-white. 20-30 eggs are arranged into an egg mass. The nymph is slightly flattened and round, dark brown, with dark spots on its back. The adult yellow-spotted bug (Erthesina fullo) is 20-30 mm long and 8-11 mm wide. Grayish-brown, with the body dorsum and forewings densely
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Occurrence and Damage Characteristics of Tea Tussock Moth and Integrated Control Methods
In recent years, with the development of pollution-free tea and organic tea production, the frequency and amount of chemical pesticides used in tea gardens have decreased, and some tea gardens even do not use chemical pesticides, resulting in aggravated damage by the tea tussock moth in a short period. In the county where the author works, tea tussock moth damage has occurred for several consecutive years, and after being damaged, the tea plants were left with only bare branches, greatly affecting the economic income of tea farmers. 1. Damage symptoms: The tea tussock moth larvae bite and feed on leaves, causing leaf notches and bare branches. 1st-2nd instar larvae gather on the underside of leaves to feed on the mesophyll, leaving only the epidermis and veins, and the damaged leaves appear transparent
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Identification and control methods of the tea shot-hole borer
The adult and larval stages of the tea shot-hole borer both bore into the branches and trunks of lychee and longan, with branches 1-2 cm in diameter being the most heavily affected, and numerous nearly circular small entrance holes visible on the exterior. If an affected branch is cut open, several nearly ring-shaped horizontal small galleries will be found in the xylem, and dark brown beetles smaller than a grain of rice, or milky white legless larvae and pupae, are commonly seen. Because the transport of water and nutrients in the affected branches is blocked, the trees weaken in vigor and often produce dead branches and broken branches, and entire young trees have even been found killed by the damage. In recent years the tea shot-hole borer
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What are the control methods for the tea white scale (Pseudaulacaspis pentagona)?
The tea white scale belongs to the order Homoptera, family Diaspididae. It is distributed in most tea-producing provinces across the country and is an important tea tree pest in East China and Southwest China. Besides damaging tea, it also harms various plants such as citrus, pear, and apple. It damages tea trees by nymphs and female adults parasitizing on branches and trunks and sucking sap. Affected tea trees sprout sparsely, decline in vigor, age prematurely, and in severe cases shed a large number of leaves or even die. Morphological characteristics: the female's scale cover is grayish-white, about 1.5 mm long, narrow and slightly curved like a bent eggplant, slightly wider at the rear end and with a brown scale point at the front end.
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