To control second-generation armyworms in corn fields, we must master the methods of application. Because in this period, the corn seedlings are small and in the period of small bell-mouths, they are more sensitive to pesticides and they must be careful when applying pesticides. To select high-efficiency and low-toxicity pyrethroid pesticides, do not arbitrarily increase the dosage when using them. In particular, high-potency hydropermethrin is most likely to cause phytotoxicity. Because most of the liquid flows into the heart and leaves of corn, when the amount of liquid accumulated in the heart reaches a certain level, it will cause phytotoxicity to the corn, causing death of the heart of the corn and the decay of the stem base. Specific prevention measures are as follows:
Promote early application of medicines. Because the drug resistance of the larvae before the third instar is ten times lower than that of the larvae after the fifth instar, only the prevention and control of the larvae at the low age (before the third instar) can achieve better control effects. Generally speaking, the egg period of the second-generation armyworm is about 3 to 4 days. From the 1st to the 3rd instar larvae, it takes about 7 to 10 days to develop. Before the 3rd instar larvae, the best application period is only 3~. 4 days. Therefore, make full preparations in advance.
In order to protect natural enemies, 667 m2 can be selected from 1 to 2 grams of diflubenzuron (active ingredient) and 5 to 10 grams of diflubenzuron III (effective ingredient). Due to the special mechanism of insecticides and slower drug efficacy, Two to three days after the general application, the armyworm died. Therefore, in the use of such biological pesticides, it should be used in the early stage of the second instar larvae.
Can also use high efficiency and low toxicity of pyrethroid pesticides for prevention and treatment. Can be used 50% phoxim EC, 40% chlorpyrifos EC such as 1000 times or 4.5% of the high-efficient rheperm 1500 times spray.
Whether you`re stressed from a long day at work or treating yourself to an at-home spa day, using an electric foot massager is the next best thing to seeing a professional.
Kneading, massaging, and vibrating. These are just some of the things a foot massager can do. With so many functions, it can be hard to find the product that's just right. Some are more suited for the occasional soreness and others are well equipped to relax chronically overworked feet. And some have tons of speeds, vibrations, jets, and more, while others keep it pretty simple and compact. Some are meant to provide deep tissue massage, while others improve blood flow. It all comes down to finding the best one for your needs.
Electric Foot Massagers,Vibrating Foot Massager,Reflexology Foot Massager
Ningbo Shuangtuo International Trade Co., Ltd. , https://www.nbst-sports.com