TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Component: The copper salt is copper sulfate, copper sulfate pentahydrate, copper chloride, copper nitrate, copper sodium tartrate, copper acetate, 8-hydroxyquinoline copper salt, chitosan copper salt, copper citrate, EDTA copper salt and copper ammonia complex ion.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The chemical composition comprises triazole, amide, pyrimidine, methoxyl acrylic ester, iminazole, thiazole, morpholine, pyridine, quinoline, pyrrole, amino formate or organic phosphorus based compounds, antibiotics and other compounds. The mass ratio of the copper rosinate to the chemical composition is 1-25-1-40%. Preferred Components: The mol ratio of rosin to copper salt to alkali liquid is 1-4:0.5-1.5:1-4. The mass ratio of the rosin to the solvent is 1:3-6. The solvent is one or mixture of at least two of methanol, ethanol, butanol, toluene, dimethylbenzene, solvent oil, dimethylformamide, acetone, butanone and cyclohexanone. The alkali liquid is one or mixture of at least two of sodium hydroxide, potassium hydroxide, liquid ammonia, ethanolamine, diethanolamine, triethanolamine, methylamine, ethylamine and triethylamine. The triazole based compound is difenoconazole, propiconazole, tricyclazole, tebuconazole, hexaconazole, epoxiconazole, flutriafol, myclobutanil or tradimenol The amide based compound is flumorph, dilute acyl morpholine, metalaxyl, flutolanil, cyflufenamid or octhilinone. The pyridine based compound is pyrimethanil, mepanipyrim or cyprodinil. The methoxyl acrylic ester based compound is azoxystrobin, orysastrobin or picoxystrobin. The iminazole based compound is probenazole, imazalil, prochloraz, cyazofamid, pefurazoate or hymexazol. The thiazole based compound is thiazole strobin. The morpholine based compound is dodecyl cyclo-morpholine or tridecyl morpholine. The pyridine based compound is fluazinam. The quinoline based compound is hydroxyl quinoline. The pyrrole based compound is fludioxonil. The amino formate based compound is diethofencarb or propamocarb. The organic phosphorus based compound is isokitazine or edifenphos. The antibiotic is kasugamycin, polyoxin or validamycin. The other compound is metalaxyl, carbendazim, thiophanate-methyl, triazolone, chlorothalonil, isoprothiolane, thiram, maneb, propineb, sulfur or cymoxanil. ACTIVITY - Insecticide; Acaricide; Fungicide; Antibacterial.    ADMINISTRATION - The combination is diluted for 1000-1200 times from disease primary period or young ear forming period to booting stage, and sprayed for one time at the booting stage and the heading stage when used for rice crops. The combination is diluted for 1000-1200 times at seedling period and flower period, spraying for one time each 7-10 days, and sprayed for 3-4 times when used for cotton, soybean, wheat and tobacco plants. The combination is diluted for 1000-1200 times, sprayed for one time each 7-10 days, and sprayed for 4-6 times at starting period of disease when used for cucumber, melon, watermelon, Hami melon, pumpkin and balsam pear. The combination is diluted for 1000-1200 times, sprayed for one time each 10-15 days, and sprayed for 5-8 times when used for cabbage, orange and grape plants. The combination is diluted for 1000 times, sprayed for one time each 7-10 days, and sprayed for 2-3 times at starting period of disease when used for eggplant and hot pepper plants. The combination is diluted for 1000-1200 times, sprayed for one time each 7-10 days, and sprayed for 2-3 times. The combination is diluted for 1000 times, sprayed for one time each 7-10 days, and sprayed for 2-3 times at starting period of disease when used for green onion, garlic, ginger, potato and taro plants. The combination is diluted for 1000-1200 times, sprayed for one time each 7-10 days, sprayed for 2-3 times when used for kidney bean, towel gourd, green bean and A.selengensis plants. The combination is diluted for 1000 times, sprayed for one time each 7-10 days, and sprayed for 2-3 times when used for strawberry, celery, radish and Asparagus. The combination is diluted for 1200-1500 times, sprayed for one time each 7-10 days, and sprayed for 2-3 times when used for longan. The combination is diluted for 1000 times, sprayed for one time each 10-15 days, and sprayed for 4-6 times when used for lychee. The combination is diluted for 1000 times, sprayed for one time each 7-10 days, and sprayed for 2-3 times when used for loquat. The combination is diluted for 1000-1200 times, sprayed for one time each 7-10 days, and sprayed for 2-3 times when used for banana. The combination is diluted for 1200-1500 times, sprayed for one time each 10-15 days, and sprayed for 4-5 times when used for pomelo. The combination is diluted for 1000-1200 times, sprayed for one time each 7-10 days, and sprayed for 2-3 times when used for mango (all claimed).