Pesticide use process issues that need attention

Pesticide mixture

Tobacco production, some farmers in order to save time and reduce labor intensity, mixed together using several pesticide spraying method. The right mix might improve efficiency and efficacy of pesticides, but confusing mix of pesticides. To rid of pests and mixing several different spraying must take into account the occurrence of each pest and pesticide suitable period of time as well as the persistence of each drug, and only in the event period, spraying suitable period and persistence can be a good match and ensure good medical case mix is ​​reasonably practicable. Otherwise, it will lead to at least a potion mixed useless, in fact, unnecessary wastage, increasing farmers unnecessary financial burden and environmental pressures. Generally, Bordeaux mixture and other alkaline pesticides and biological pesticides bt emulsions should be used alone; conventional organic phosphorus, pyrethroid insecticides, and fungicides can mix conventional; acaricide can include alkaline pesticides, including almost All pesticides.

The use of pesticides and fogging effect dose

The main producing areas of tobacco leaf samples pesticide residue analysis results show that the amount of pesticide residues in tobacco generally higher. Mainly because farmers pressure sprayers spraying unreasonable, arbitrary increases pesticide concentration, increasing the dose, do not use the meter, often with a random amount of caps, resulting in higher levels of pesticide residues in tobacco and environmental pollution and pesticide waste, and Shi easily lead to injury dose increases, the use of highly toxic pesticides greatly increases the risk of poisoning.
Currently spraying machine quality is generally not high, especially sprayer exist "leaking" a serious problem. For decades farmers have been using the traditional manual compression sprayers, garden water sprayer spray large droplets, the loss of a large amount of liquid. And the existence of errors in understanding that only sprayed on tobacco plants dripping liquid in order to obtain the best control effect. Not really need to quit spraying plants thoroughly wet the whole plant, as long as the distribution of pharmaceutical active ingredients uniform deposition, will be able to play a good efficacy. Promoting tobacco production of large purchase knapsack sprayer (such as Tarzan -18), using a fine mist blower spraying technologies to improve control effect and reduce pesticide use.