The 28-spot ladybug is a typical harmful ladybug that harms vegetables. It is the collective name for potato ladybug and eggplant ladybird, and it is harmful to eggplant and potato. In recent investigations on individual plots in rural areas, the pests were found to be a serious hazard to eggplant. One hundred plants had 30 to 40 adults, one egg, and about 30 plants. The rate of damaged plants was 80%. In recent years, with the expansion of the potato area in our country, the damage of the 28-spot ladybird has become increasingly severe. The majority of farmers must take precautions. First, identify The typical feature of the 28-spot ladybug is that there are 28 black spots on the back (black spots). This is the most striking difference from other ladybugs. It belongs to the Coleoptera and Coccinellidae in terms of entomological classification, commonly known as the flower sister and flower wife. . Adults: The potato ladybugs are larger, 7-8 mm in length, auburn, and the 4 dark spots behind the 3 dark spots at the base of the eel are not on a line. There are 1 to 2 pairs of black spots on the joints of the two sheath wings. The 18-spot ladybug is small, about 6 mm long, yellowish-brown, and the four dark spots behind the three dark spots at the base of the eel wing are almost in a straight line. Black spots are not connected at the joints of the two wings and the body is hemisphere. shape. Eggs: The eggs of potato ladybugs are large, about 1.4 mm long. They are yellow at the time of first production, and turn brown afterwards. The eggs are arranged loosely. The eggs of the egg 28th ladybird are smaller and have a length of about 1.2 mm. At the beginning of production, it is yellowish-white and then brownish. The eggs in the egg mass are densely arranged. Larvae: Potato larvae have a relatively long larval body, approximately 9 mm, pale yellow-brown. Body surface more thorns, black; Ladybird 28 larvae of the larvae body is shorter, about 7 mm, from the initial production of pale yellow to white, branches thorn white. Cockroaches: Potatoes have large cockroaches, about 6 mm in length, pale yellow, with 2 tails; and eggplant 28-spot ladybirds have small cockroaches, about 5.5 mm, yellow-white. Second, the harm period The worms occur in the North China region one to two generations a year, with two peaks in late June to early July and mid-August. Third, the hazard characteristics Adults and larvae can all harm, lightly bite the skin of the leaves into a mesh shape, and the heavy mesophylls are eaten away and only the veins are left. In addition to damaging the leaves, they also harm the fruits, tender stems, and flower organs. After the fruit is damaged, it becomes hard and bitter and the quality is severely discounted. In addition to harming eggplant and potatoes, it can also harm beans, melons, and cruciferous crops in severe cases. Fourth, control methods 1. Agricultural control: Artificially capture adults and remove egg masses, and use the adult's suspended animation to capture and destroy. The 28-spot ladybug is spawned, brightly colored, easy to spot, and has both front and back surfaces, and the reversible leaves can be eliminated. 2. Chemical control: The drug should be used during egg growth and larvae dispersion. Select 4.5% beta cypermethrin, 2.5% kanthaverin, 50% phoxim, 50% malathion, 48% chlorpyrifos, etc. Both sides of the blade must be sprayed on both sides. Garlic.Ginger.onion.peeled Onion.peeled Garlic.frozen Onion Pieces garlic.Ginger.onion.peeled onion.peeled garlic.frozen onion pieces henan junzhian food co., ltd , https://www.junzhianfood-onion.com
We mainly export European Chinese onions, garlic and ginger.
Fresh yellow onion and red onion size 60-80mm 70-90mm 90-110mm 10kg/net bag, 20kg/net bag or 25kg/net bag (2019 new crop onion)
Peeled yellow onion and red onion size 60-80mm 70-90mm 90-110mm 10kg / box, 20kg / box, filled with nitrogen, storage time of 90 days.
Frozen onion, frozen onion cube, frozen onion ring 10kg/box or 20kg/box Save for 2 years.
We also offer garlic, ginger and peeled garlic
Our onions have been sold in the Netherlands, the UK, Poland, and Italy, and the quality is very good.
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