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Detailed Explanation of the Classification and Identification Methods for Safflower and Saffron
In the herb garden of traditional Chinese medicine, there are two medicines named safflower, respectively called safflower and saffron. Although their medicinal properties and functions are basically the same, they are plants of two different families and genera, and their prices differ greatly.
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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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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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Symptom Identification and Control Methods of Root Rot in Codonopsis pilosula
The pathogen is a type of imperfect fungus among the fungi, and it is divided into two types: chronic onset and acute onset. In the chronic type, the disease begins in mid to late May. In the early stage of the disease, dark purple lesions appear on the lower fibrous roots or lateral roots, which then turn black and rot. After the disease spreads to the main root, it gradually rots from bottom to top. The remaining unrotted part is mostly a "half-section ginseng," and the area near the rotted part is dark brown. The stems and leaves above ground gradually turn yellow and eventually die. In the acute type, the disease mostly begins in mid to late June. Once the ginseng root is infected, almost the entire ginseng root becomes diseased at the same time
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Symptoms, Identification and Control Methods of Pinellia Leaf Spot
It occurs in early summer. Purple-brown spots appear on diseased leaves, and later many small black dots form on the lesions. In severe cases, the lesions cover the entire leaf, causing the leaves to curl, scorch and die. Control methods: In the early stage of the disease, spray 1:1:120 Bordeaux mixture or 65% zineb 500-fold solution, once every 7-10 days, for 2-3 consecutive applications.
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Identification and Control Methods for the Black Locust Aphid
The black locust aphid damages many leguminous plants such as black locust, Chinese scholar tree, and false indigo. Adults and nymphs gather on new black locust shoots to suck sap, causing new shoots to bend, young leaves to curl, and branches to stop growing, while their secretions often cause sooty mold. The wingless aphid is about 2 mm long, oval, pitch-black and glossy, with distinct hexagonal reticulation on the dorsum of the head, thorax, and abdominal segments 1-6; abdominal segments 7 and 8 have transverse striae; the winged aphid is long-oval, black and smooth, with grayish-white, transparent wings. The black locust aphid has more than 20 generations per year. Mainly
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Symptom Identification and Control Methods for Leaf Spot Disease on Japanese Spindle (Euonymus japonicus)
Symptoms: The disease affects the young and old leaves of Japanese spindle (Euonymus japonicus). Yellow-brown spots appear on the upper surface of the leaves and expand into nearly circular or irregular shapes, 4 mm to 14 mm in diameter, with a grayish-white center, light brown concentric rings, and a dark brown slightly raised edge. Dense tiny black mold dots form within the lesions. The spots show through to the underside, though the color on the underside is slightly lighter than on the upper surface. After the lesions dry up, they crack apart from the healthy tissue, eventually forming holes. This often causes early leaf drop. Pathogen: fungus, Cercospora destructiva Rav. of the order Moniliales, class Hyphomycetes, subdivision Deuteromycotina.
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Bagging and Unbagging Peach Fruit: Proper Timing and Classification Are Key
Editor's note: Fruit bagging can effectively reduce fruit cracking and mechanical damage, improve the color of the fruit surface, greatly enhance the fruit's marketability, and also prevent and control pests and diseases, reduce pesticide use, and lower pesticide residues. To help farmer friends master this technique, we have specially invited relevant experts to introduce bagging techniques for peach, kiwifruit, citrus, pear, grape, and other fruits. In this issue, we introduce kiwifruit and peach bagging techniques. The kiwifruit bagging technical measures are: bag selection, fruit thinning, fruit setting, pesticide spraying, bagging, protection,
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Identification and control methods for Apophylia thalassina
Scientific name Apophylia thalassina (Faldermann), order Coleoptera, family Chrysomelidae. Also known as wheat stem leaf beetle, wheat golden flower beetle. Its distribution runs from Heilongjiang and Inner Mongolia in the north, its southern limit does not cross the Huai River, and it reaches Gansu and Qinghai in the west. It is becoming increasingly serious in Shanxi, Gansu and Hebei. Hosts include wheat crops, corn, goji berry, thistle, willow, etc. Damage characteristics: the larvae bore into the wheat stem from 1.5cm below the soil surface to cause damage, resulting in dead hearts, dead seedlings, white heads and ineffective tillers, causing large areas of wheat fields to have missing plants and broken rows
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Diagnosis and Treatment of Swine Dysentery (Part 2): Detailed Explanation of Symptom Identification and Treatment Methods
4 Laboratory Testing 4.1 Smears were made from the heart, blood, liver and spleen of dead pigs, stained with Gram stain and Rui's stain, and no bacteria were found under microscopic examination. 4.2 Mucus-containing bloody feces from acutely affected pigs were collected and mixed with an equal amount of normal saline to prepare a suspension. The suspension was examined under a dark-field microscope, and in multiple fields of view, 3-5 spirochetes with uniform morphology, pointed ends at both ends, and snake-like motility were visible. 5 Prevention and Control 5.1 For the whole herd, use mequindox (3-methyl-2-acetyl-quinoline-1,4-di
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