2. Forecast and forecast
According to the relationship between the occurrence and epidemic of pests and diseases and host plants such as navel oranges and the environment, the occurrence, peak period, peak period and occurrence degree of pests and diseases were analyzed and inferred by means of field observation, number and dynamic detection of pathogenic bacteria and prediction of meteorological conditions, and the appropriate control period and reasonable control technology were determined.
3. Agricultural control
Implement technical measures such as pruning, garden cleaning, drainage and shoot control. , strengthen the cultivation management, enhance the tree potential, and improve the tree's own ability to resist pests and diseases.
4, physical and mechanical prevention and control
By using light to control pests, we can use frequency vibration insecticidal lamp or black light lamp to lure or drive away phototactic pests such as fruit sucking moth, scarab, leaf curl moth and so on.
Chemotaxis and sex attractants can be used to control pests. Insecticides can be added to sugar solution and vinegar to trap and kill chemotactic pests, such as fruit sucking moths and leaf curl moths. Artificial capture of pests, such as longicorn beetles, scarabs and other pests.
5. Biological control
Artificial introduction, reproduction and release of natural enemies, such as predatory mites, drifting insects, Trichogramma and other mites, scale insects, leaf rollers and other natural enemies.
Biological pesticides and mineral pesticides, such as Bt (Bacillus thuringiensis), Beauveria bassiana, avermectin, Nong Kang 120, nicotine, matrine, azadirachtin, rotenone, turpentine mixture, engine oil emulsion, diesel oil emulsion, yubiqing and various drugs made of copper sulfate and sulfur.
6, chemical control
Control the index, strengthen the prediction of pests and diseases, grasp the occurrence dynamics, and apply pesticides in time according to the phenology of navel orange when reaching the control index. Choose pesticides with high efficiency, low toxicity and low residue, prohibit the use of pesticides with high toxicity, high residue or triple effect (carcinogenic, teratogenic and mutagenic), restrict the use of pesticides with medium or above, use pesticides with low toxicity, biological sources and mineral sources, strictly observe the safety interval, and pay attention to drug rotation to prevent drug resistance.