Inoculants, acaricides, herbicides
Mancozeb (non-complexed mancozeb) should not be used in litchi, grape young fruit, some pear varieties with caution, pear small fruit when applied manco manganese zinc prone to fruit surface spots. When the concentration is too high, phytotoxicity is also easily caused on jujube trees.
Propiconazole is sensitive to crops such as melons, grapes, strawberries, and tobacco. It must be strictly controlled and used after fruiting.
Chlorothalonil has a high concentration of chlorothalonil and is harmful to pears, persimmons, peaches, and plums. It cannot be used within 20 days after the apple is dropped.
Sulphur, peach, pear, grapes and other crops are sensitive to the drug and are prone to phytotoxicity. When using, the concentration should be reduced or the number of sprayings should be reduced. In the hot season, it should be applied early and late to avoid the application at noon.
Chun Lei Copper Chloride (Garenong) Apple, grapes and other young leaves sensitive to the drug, there will be a slight curl and brown spots, use concentration should be used, should be sprayed after 4 pm.
Bordeaux mixture can be used on apples, pears and grapes. Prevention of citrus scab in spring, the temperature exceeds 30 °C, bud length exceeds 1 cm long, spray 0.8% equal Bordeaux mixture will produce serious burning buds, should be changed to spray 0.5% times the amount of Pol safer; pear to copper ion Sensitive, use multi-type Bordeaux liquid; grape sensitive to lime, the use of lime Bordeaux mixture half-measure, such as the high temperature period before and after noon in the summer, rainy days, the morning fog is not dry and large wind and air spray are likely to cause phytotoxicity.
The lime sulfur mixture is prone to phytotoxicity on the young tissues of grapes, peaches, pears, plums, plums, and apricots. Use caution when using it. It is best to spray in the deciduous season. Do not use it in the growing season or in the fruit and fruit period. There are certain phytotoxicity to kiwi fruit and grapes.
The concentration of triazotin is preferably 1500-2000 times. In the low-temperature period, the commonly used concentration will have a lighter injury to the young shoots of fruit trees. It will also result in flowering, falling leaves, fruit drop, and so on. The use of orange shoots at 10 to 15 cm can easily cause injury.
Insecticide
Dimethoate, oxycarambola, peach, apricot, fig, citrus, and other crops are sensitive to dimethoate emulsions diluted to less than 1500 times, and should be used carefully before use.
Phosphate should be avoided in the flowering spray, so as not to cause injury, the use of fruit trees before flowering is appropriate, the concentration should not be arbitrarily increased, otherwise it will cause brown leaf spots. From June to July, when the temperature exceeds 30°C and 800 to 1000 times, young fruit can easily produce phytotoxicity.
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