One must avoid the temperature is too low when applied. Some farmers in the application of microbial living pesticides, do not pay attention to environmental factors, do not choose to use the weather under higher temperature conditions, and even in winter and early spring cold weather conditions, it did not achieve the desired control effect. This is because biological pesticides require higher temperatures when they are applied. Experiments show that between 25-30°C, the control effect of the live microbial pesticide after spraying is 1-2 times higher than that between 10-15°C. T8-T5 Adaptor Ningbo Sunfine UV lighting Co.,ltd. , http://www.uvlightings.com
Second, to avoid the application of dry weather. For example, when the weather is applied at high temperature and dry weather from 10 o'clock in the morning to 4 o'clock in the afternoon, the effect is not good. This is mainly due to insufficient humidity in the environment. Therefore, it is best to use when the humidity is high, such as cloudy days, rain or morning.
Third, we must avoid strong sunlight. There was no use of noon avoiding high temperatures and strong sunlight, causing a drop in efficacy. Microbiological live pesticides are most afraid of strong sunlight. Ultraviolet rays in the sunlight have a lethal effect on spores, and ultraviolet radiation can also produce deformation and decrement effects on parasporal crystals. Therefore, it is better to use it after 4 o'clock in the afternoon or on cloudy days.
Fourth, to avoid heavy rain after application. Spores are most afraid of heavy rain, because heavy rain flushes away the sprayed bacteria. If light rain is applied after spraying (5-6 hours later), not only does it reduce the efficacy, but it can also increase the control effect because light rain is beneficial to germination of spores, and pests can accelerate their death once they eat. Therefore, according to the weather forecast to determine the application time.
Fifth, avoid mixing with fungicides. As bulk fungus, as a fungal insecticide, the efficacy is achieved by the action of live spores of the genus Lactarius. After being applied, live spores infested the aphids and died. The infections can be sustained and cause massive deaths. However, as a kind of living fungi, if they are mixed with insecticides, they are killed by fungicides and naturally lose the insecticidal effect.