Spodoptera exigua, Spodoptera litura, and Plutella xylostella are three major pests that significantly threaten vegetable production in our province. These pests are prone to outbreaks and have developed resistance to chemical pesticides, making them difficult to control. For many years, farmers have relied heavily on conventional chemical insecticides, which not only cause environmental concerns but also accelerate the development of pest resistance.
In recent years, a biological pesticide known as Austrian Green No.1 has been widely used in vegetable farming. This product is a microbial pesticide developed independently by China and has been recognized as a national key new product. It has gained popularity among farmers in our province as well as in major agricultural regions like Shandong, Guangdong, and Shanghai due to its effectiveness and safety.
Below are the key features and application methods of Austrian Green No.1:
**First, Product Characteristics**
1. **High Selectivity**: As a microbial pesticide, Austrian Green No.1 targets specific pests while preserving natural enemies. This helps restore ecological balance, reduce reliance on chemical pesticides, and maximize both economic and environmental benefits.
2. **Continuous Transmission**: One of the greatest advantages of viral insecticides is their ability to spread within pest populations. After spraying, the virus infects larvae, eggs, and even dead pests, transmitting to future generations. This leads to large-scale epidemics, keeping pest populations at low levels without the need for chemical intervention. Additionally, it weakens the pests' reproductive abilities, reduces fertility, and increases natural mortality rates, effectively lowering pesticide resistance over time.
3. **Environmental Compatibility**: Unlike chemical pesticides, viral insecticides do not harm the environment or beneficial insects. They are safe for humans, livestock, and target pests, making them an ideal choice for producing green and pollution-free agricultural products.
4. **Proven Effectiveness**: Over five years of large-scale field trials in provinces such as Shanghai, Anhui, and Zhejiang, Austrian Green No.1 has shown a control rate of over 90% against Spodoptera exigua and Spodoptera litura. It is now recommended by the Ministry of Agriculture as a key resource for sustainable and eco-friendly vegetable production.
**Second, Application Methods**
1. The best time to apply the pesticide is when the pests are in the early larval stage, before they disperse and develop resistance. Spraying should be done during the hatching season or when young larvae are active.
2. Dilute the product at a ratio of 800–1000 times. Before use, shake the concentrate thoroughly, then mix a small amount of water into the concentrate. Add the required amount of water to achieve the desired concentration. Use a manual or mist sprayer to ensure even and fine distribution.
**Third, Important Notes**
1. Since these pests are nocturnal, it is best to spray before 9:00 AM or after 4:00 PM for optimal results.
2. If pest density is high, overlapping generations are present, or crops are dense, adjust the dosage and volume accordingly to maintain effective control.
3. Austrian Green No.1 can be combined with fast-acting chemical insecticides to enhance immediate efficacy. It is compatible with non-alkaline insecticides, fungicides, herbicides, and foliar fertilizers.
By using this innovative biological pesticide, farmers can achieve better pest control, reduce environmental impact, and support sustainable agricultural practices.
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