Sweeteners are Food Additives that sweeten soft drinks. Sweeteners can be divided into nutritional sweeteners and non-nutritional sweeteners according to their nutritional value. According to its sweetness, it can be divided into low sweetness sweetness and high sweetness sweetness I flavor; According to its source can be divided into natural sweeteners and synthetic sweeteners. Natural sweeteners include stevia, grosvenin, licorice, disodium glycyrrhizinate, tripotassium glycyrrhizinate and trisodium. Mogroside V,Compound sweetener,Stevia Leaf Extract,Monk Fruit Extract,Fructus Monordicae Extract Xi'an Gawen Biotechnology Co., Ltd , https://www.amulyn-bio.com
The adult worms were 7 mm in length and 15 mm in length. They were grey-brown in color; the front fins had three white horizontal ripples, and the middle had a dark brown kidney-shaped spot with a white edge; the hind wings were greyish white. The mature larvae are 12 to 14 mm in length, black on the head, yellowish on the ankles, and indistinct gray-brown longitudinal stripes on the back of the body. Adult phototaxis is not strong, flying power is weak, eggs spawned on young leaves of the seedlings, an average of 200 female eggs per female can lay eggs, egg development period of 2 to 5 days. Newly hatched larvae damage latent leaves. After the second instar, the leaves are pierced and the third instar silk is conjugated to the heart. When the leaves are fed, the leaves die and no new leaves can be extracted. From 4 to 5 years old, the leaves or petioles can be removed. Into the stem marrow or root. The larvae have the habit of transforming the plants. If the plants are spread densely, the more damage the plants will have.
Control methods: adults and second-instar larvae, white kung-fu or red arrow can be used 1500 times, or 1500 times or 1500 times to prevent it; it is recommended that the third-instar post-larvae, that is, after silkworm scab, should be based on the above-mentioned agents. Adding a potency-enhancing agent and a 40% dimethoate 1000 times solution to prevent and treat.
Identification and Prevention of Vegetables
Vegetable worms are also known as borers and borers. The vegetable seedlings in the city from September to October each year are heavier. The main hazard is the leaves near the heart or leaves of the young plants such as greens, radishes, cabbage, cabbage, and rapeseed, which cause the lack of heart and stop the growth or wilting death. After injury such as cabbage, cabbage, etc. can not be covered.