Sang Tianniu is a major pest that causes damage to timber forests and economic forest trees. Sang Tianniu is known as Brown Tianniu, commonly known as Hami, buffalo, chiseled woodworm, iron and worm. Generally two generations, larvae in the trunk of the tunnel winter, mature overwintering larvae in early June phlegm, feathering in late June, spawning in mid-July, hatching in late July. In production, the following four measures can be used to control Sang Tianniu: 1, digging eggs. From July to August, Sang Tianni was spawned on 10-mm-long branches in 2-3 years. Prior to spawning, the adult first bites a rectangular or "U" shaped hole at the base or above the shoot and removes the bark. Then, one egg was produced in the shallow part of the xylem, and the xylem was longitudinally filiformly broken. This special spawning hole can be easily identified and can be used to remove or stab eggs. 2. Kill the larvae. From July to September, the mulberry larvae hatched and slanted into the base of the branches. First foraging in the shallow layers of the twigs and xylem, then digging into the wood core, drilling down along the heart and marrow, with a row of fecal holes at intervals. One of the newest fecal holes may be selected to remove the crumbs and insert them into the tunnel with a wire or metal needle to hook or kill the larvae. 3, capture adults. Adults emerge from late June to late August. During the adult stage, the orchards or woods are patrolled every evening to catch the adults, vibrate the trunks and kill them, or spray the parathion when they feed. 4, protect natural enemies. When pruning in winter, it was found that the branches that produced the mulberry eggs did not need to be cut off. Most of them were parasitized by mulberries and wait until the emergence of parasitoids in early July.
For the most common waxy and sweet corn on the market, waxy corn has a higher nutrient content than regular corn, containing 70-75% starch (and almost all straight-chain starch), more than 10% protein, 4-5% fat and 2% multivitamins, with more grains, VA, VB1 and VB2 in protein than rice, with the highest fat and VB2 content. Yellow maize also contains carotenoids, such as rice and wheat. The molecular weight of waxy maize starch is more than 10 times smaller than that of ordinary maize, and the starch makes glutinous rice sticky and soft, softer than ordinary hard maize. It is more than 20% more digestible to eat than regular maize and it is suitable for people with less than perfect teeth. At the same time, it is not suitable for diabetics because of the very high content of straight-chain starch (a polysaccharide).
Waxy maize is also known as sticky maize. The grain has coarse, waxy endosperm, similar to shiny, glassy (clear) grains such as hard and dent maize. Its chemical and physical characteristics are controlled by a recessive gene, which is located on chromosome 9. 100% of the starch in the endosperm is straight-chain starch.
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