PMU is used to produce estrogen and hormone-replacement drugs such as Premarin, PremPro and PremPhase and DUAVEE, a "PremPro-Lite" which contains Premarin. PMU drugs are made by keeping mares constantly pregnant and collecting their estrogen-rich urine. The horses should be in good healthy, age from 4-15 years old, the color
should be dark. the horses should be check-up and disinfected during
the transportation. The blood taking should be called off immediately
when infectious disease is found, any medicine of Penicillin and
streptomycin is forbidden to use.
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Morphological characteristics Adult white. Female moths are 15 to 18 mm in length and 34 to 40 mm in wingspan; males are slightly smaller, their feathers are tentacles, and there is a cluster of orange and yellow poisonous hairs on the abdomen. White wings, 2 dark brown lines on the trailing edge of the forewings. Feet white. Oval flat, yellow-brown. Eggs are oval in shape, with 200 to 300 eggs per piece and yellow villi on the surface. The 1st instar larvae are gray-brown and the 2nd instar color appears throughout the body. 30 mm in length when cooked. The head is dark, yellow on the chest and abdomen, and there is a red back line. There are many red and black furs on each section, with black and yellow-brown long hairs and pine-branched white hairs. The first and second abdomen are enlarged with 1 dark bristles on the back and 1 orange-red small pot-shaped protrusion on the center of the back of the sixth and seventh abdominal segments. It is tan, 13 mm in length. Long oval, gray-brown. Infertile, with larvae shed.
The characteristics of the occurrence? Jiangsu and Zhejiang in 1 year 3 to 4 generations. The 3rd to 4th instar larvae overwintered in trunk cracks or dead leaves. In late May, phlegm and eclosion occur in early June. The first generation of larvae was the most violent in mid-June and had mixed food habits. Second-generation larvae occur at the peak of mid-August, third-generation larvae are mid-September, and fourth-generation larvae are from late September to mid-October. Eggs are produced on the back of the leaves, and the eggs are covered by abdominal fat yellow hair. Each female lays 200 to 550 eggs. Egg period 4 to 7 days. The larvae began to have poisonous hairs from the eighth instar, from eight to 37 days, and from the second instar, and dispersed after the third instar. The larvae dwell in the cool shade of the leaves during the day and feed on the leaves at night. The mature larvae cricket in the trunk cracks. The flood season is 7 to 12 days.
Prevention and control techniques for venomous moth pests. Toxic moth pests generally do not cause great harm and do not require special treatment. However, some species will have intermittent outbreaks and cause great harm.
? 1, killing? The moth lay eggs were massive, and more concentrated; most types of 1 to 2 instar larvae have a cluster feeding habits, it is easy to find, combined with the orchard cultivation management, clean orchards, completely remove the litter within the orchard , strengthen the plastic trim, etc., can be removed in the leaves and eggs, newly hatched larvae and crickets, but when the killing, we must pay attention to protection, need to wear protective clothing to prevent the moths from invading the human skin, eyes and respiratory tract.
? 2, trapping and killing? Moth adult moths have a strong phototaxis, can be used during the adult period, the use of black light, high-pressure mercury lamp or frequency vibration killing lamp and other trapping, concentrated elimination. In addition, adult males and females can also be hunted using sex attractants.
3. Use of pathogenic microorganisms The pathogenic microorganisms that control venomous moth pests include fungi, bacteria, and viruses. When venomous moth pests are commonly harmed in the field, Beauveria bassiana, Bt, nuclear polyhedrosis virus, or polyhedrosis virus can be used. Formulations (many types are commercially produced) are sprayed and controlled. ?
4. Chemical prevention and control When the toxic moth pests occur, other control measures can not effectively control the harm, some organic phosphorus, carbamate or pyrethroids can be used to carry out high-efficiency, low-toxicity and low-residue pesticides. Prevention. The pesticides that can be used are 90% crystal trichlorfon, 80% dichlorvos EC, 50% chlorpyrifos EC, 50% phoxim EC, 50% malathion EC, 70% OPA, 10% Uranus EC, 2.5% fenvalerate EC, 2.5% Kungfu EC, 20% extinguish DF, 25% Diflubenzuron III, etc., apply according to the instructions. Before the third instar, the larvae of the poisonous moths were clustered, inactive, and resistant to insects. This is a critical period for the chemical control of the moth pests.
Yellow tail tussock moth
Yellow proboscis moth (Euproctis similis var. Xanthocampa), alias Sang worm, golden caterpillar, poisonous caterpillar. Distribution of Northeast and Hunan, Hebei, Henan, Yunnan, Shandong, Jiangsu, Zhejiang, Hubei, Guangdong, Guangxi, Guizhou, Anhui, Jiangxi and other places. The host has rose, plum, peach, jellyfish, mulberry, plum, pear, willow, cherry blossom and so on. The larvae feed into nicks or holes, affecting the tree potential.