Some fruit farmers reacted, after the completion of the garden, this shoot has not yet produced how long, you can see the red spider, and some orchards are also cleared, but also see the traces of the red spider. As a mite that must be prevented during the flowering period, everyone will also add acaricide when killing insecticidal bacteria and replenishing fertilizer, after all, April is an outbreak period for red spiders, and it is always wrong to reduce the pest base early. However, there are many doubts, such as the following questions:
Why are there still red spiders after the clearance of the garden?
Can Argyne Mites be used now? How to use security?
Can I use mineral oil?
Can fluridylamine be used?
Bao Zhuo,Jin Manzhi,Ethanazole,Avi. What about spironyl esters?
Image from a web page
If you want to make the red spider clean, we recommend in previous years, if the fruit is harvested early, it is usually recommended to use the stone sulfur compound to clear the garden first, and then use mineral oil + avermectin to clear the garden after 15 days, and then use another alkyne mite to kill the red spider before the spring shoots or the spring shoots. But this is a few years ago when the price of sugar oranges is good, it will be managed in this way, but this year's 19 years of fruit prices are relatively low, only the use of stone sulfur compound friends are more, mineral oil is too late to use, alkyne mite is not used, I saw a red spider emerge. Can stone sulfur compounds kill red spiders? It is true, but it only kills adult insects, and the red spider eggs in the winter are not killed, and now the temperature rises and the eggs hatch, so there will be some red spiders.
Relatively speaking, the use of mineral oil plus Avi is relatively rare in the appearance of red spiders. But this cost is higher.
Image from the web
Friends often ask me, is it okay to clear the garden twice? My answer is not recommended, because if the red spider is serious, it is best to use mineral oil that can kill eggs the second time with avermectin or other red spider products. Of course, the red spider is not serious, basically hit 1 stone sulfur compound and then add the reason for natural enemies, it is easy to control, at most open spring to fight alkyne mite. Of course, it would be better not to use mineral oil for stone sulfur compounds.
For the use of drugs during flowering, many people will choose alkyne mite. A friend used to react to me that he used a drug with a particularly good effect, and when I asked, I knew that it was agite. This medicine, at present, the resistance is very low, and it is indeed good for young mites and adult mites, but the egg killing effect is poor, and the red spiders that come out in early spring are basically mites and adult mites, so they will use this. Everyone will also take care of the use of alkyne mite, mainly for fear of drug damage. In fact, after the fruit is picked to before the fruit, the alkyne mite can be used (do not use it when there is fruit). When using, in order to reduce the possibility of drug damage, it is recommended that everyone use warm water to dissolve. If it is 60 degrees warm water, use the liquid: warm water = 1:5 to dissolve, if it is 30 degrees warm water, then this ratio should be adjusted to 1;10, be sure to let the viscous liquid inside, all become milky white, and then mix with other potions, so that you can.
Whether mineral oil can be used during the flowering period is indeed a controversial issue, and it will not be discussed here. In short, some people do use it, and some people do not dare to use it, and there is a big difference between products.
When mineral oil is used, the closer to the flowering time, the more deformed flowers there are, but mineral oil is different from mineral oil, such as some new technologies, which can not be delaminated for 24 hours, and some have been tested, and the flowering period is safe. We use the most is green Ying, according to the manufacturer's data, this in the flowering 6 days before the play of orange, deformity rate of 6.15%, orange blossom 10 days before the fight, deformity flower rate of 15.85%, and many people also react to green Ying safety, although there are deformed flowers, but does not affect the hanging fruit. Recently, there are some other brands, Maizeng, Jianxiu and other mineral oils have also improved the technology, it is said that the deformity flower rate is greatly reduced, but even so, we still recommend a lower concentration, you can try to use it as an additive, open to 500 times.
In short, when this is used, we must pick the mineral oil of the new technology, report the safety of the flowering period, but also reduce the use of multiples, it is best to spray the time to be longer from the flowering time, less orange flowers, use with caution.
Understand the precautions, pay attention to the mixing case, fludylamine can now also be used. The main thing is not to mix with emulsion, do not use with organophosphorus or silicone, do not mix with mineral oil, and avoid high temperature (now the temperature is not high, it should be fine).
Fluridylamine, sterilization also kills mites, really good.
In addition to the above special attention to the drug, at this time it is not recommended to use dimethylamide, you can use the relatively safe avi spironate, and acetazole (do not kill adult insects, so add avermectin to use to kill adult insects), butyfloro mite ester, tetrazole acetonitrile, etc., are OK.
Of course, in addition to the red spider during the flowering period, in addition to prevention and control, we must also pay attention to the prevention and control of psyllids, thrips, and gray mold disease, blight, and orange, and pay special attention to brown spot disease, after all, the rainy season has arrived, and oranges should pay attention to canker disease. As well as the flowering period is very important to supplement boron zinc, amino acid fertilizer, etc., these should be paid attention to.