Blackberry is one of the third-generation fruits recommended by the World Food and Agriculture Organization (FAO) in 1993 to the world. In 1995, it was introduced from the United States by the Shengcheng Seed Company of Xuecheng District, Zaozhuang City, Shandong Province. Due to its good nutrition and unique flavor, it is suitable for fresh food and processing of fruit juices and canned foods. The supply of fruit is in short supply. Blackberry has fewer pests and diseases, and its occurrence is light. Field cultivation generally does not require pesticides, and thus it has become a popular "green food." In recent years, the spotted beard has harmed the BlackBerry to varying degrees. Now the hazards of the spotted beard in the Blackberry Garden and the prevention and control techniques are briefly described as follows: Occurrence of the hazards The spotted beetle occurs in 3 generations a year, with adults in the litter. The root seams of the roots, the gaps between buildings nearer to the Blackberry Park, and the gaps between the bark and the leewards are sunny. After the winter, he moved to the Blackberry Garden one after another in mid-May and completed two generations on the Blackberry. May-July is a dangerous period. Adult nymphs like to inhabit in the ear to suck juice, and sometimes there is a long, nymph-fighting phenomenon on a fruit. In April-May, spotted beards harm plant shoots, causing young leaves to die and new shoots to “breakâ€. The tender young fruit is damaged, causing the fruit to grow abnormally and become a deformed fruit. The ripe fruit was sucked into the juice, and the fruit on the sunny day was wilting and the fruit was dull; in the case of rain, the fruit particles faded and deteriorated, became albino fruit, and the taste became worse, losing the commodity value. Generally caused by a 5% reduction in production, serious up to about 15%. Prevention and control techniques prevent and control spotted beards that harm young shoots, buds and leaves from April to May, and can use 40% omethoate 1500-2000 times spray to prevent and cure. In the early fruit ripening period (June-July), spotted beards and nymphs are perched between the ears. When the density reaches 2 heads/panicles for control, high-efficiency, low-toxic and low-residue pesticides should be used for control. Spray evenly on the ears. If 80% dichlorvos 2000-3000 times to control, pay attention to more than 3 days before harvest; if using 90% crystal trichlorfon 800-1200 times to control, it should be more than 7 days before harvest. Such as using 20% ​​hydromethrin Emulsion 3000-5000 times solution or 20% of chlorsulfuron 3000-4000 times to prevent and control, to grasp 15-20 days before harvest, so as to ensure that the fruit is harvested Safety, control effect is generally more than 85%.
Food Additives are substances added to food. Some additives have been used for centuries. With the advent of processed foods in the second half of the twentieth century, many more additives have been introduced, of both natural and artificial origin.
The advantages of food additives are these followed:
1. Improve the appearance of food.
2. Keep and enhance the nutrition value of food.
3. Increase the variety and conveniences of food.
4. Miantain freshness and prolong shelf life.
5. Provide leavening or control acidity and alkalinity.
Food Additives
Food Additives,Natural Food Additives,Food Additives Preservatives
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