Take the original herbs, remove impurities, wash water, Run through, cut thin slices, dry. Or use when crushed, Coptis should not over 14.0% of the standard moisture, the total ash content of not more than 5.0%, dilute alcohol extract not less than 15.0%. Berberine hydrochloride is not less than 5.5% berberine, berberine not less than 0.80%, berberine not less than 1.6%, palmatine not less than 1.5%.
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The larvae of mulberry mulberries and mulberry caterpillars should be caught in time when the mulberry buds germinate, and the leaf worms should be killed and killed when the dew is not dry in the morning. In the use of chemical control, according to the control of the object, drug residues and medication successive, divided into pieces. For the mulberry mulberry and mulberry caterpillar, 12.4% of mulberry worm oil should be used for 1800 times, and the safe drug application interval should be 15 days; for mulberry leafworm and mulberry, 80% of DDVP should be used and 1000 times of 40% phoxim 1200 times should be used. The safety interval is 5 days.
The mulberry garden pest control in the spring is based on the premise of not affecting the production safety of the spring silkworm, and the combination of the artificial control and the chemical control is achieved.