The Role of Pesticide Testing in the Development of Virus-Based Pesticides
The use of biologically based pesticides is increasingly being developed because they are considered more environmentally friendly. Many biological agents have begun to attract the attention of scientists, including tiny organisms such as viruses.
Viruses are known to attack specific types of insects, including pest species. Their selective nature makes virus-based pesticides a promising solution for managing harmful pests. This article explains several interesting points about these virus-based pesticides.
- Can Pest Control with Virus-Based Pesticides Actually Work?
- Advantages of Virus-Based Pesticides
- Why is Further Development Still Needed?
Can Pest Control with Virus-Based Pesticides Actually Work?
Virus-based pesticides are biopesticides that use naturally occurring viruses to control pests, particularly insect pests. Scientists have discovered several types of viruses capable of infecting animals, including insects. One example is baculovirus, a virus that naturally infects Lepidoptera larvae.
As we know, the most damaging stage of many insect pests is the larval phase—commonly called caterpillars. Viruses can attack caterpillars while they are actively feeding on plants. After the caterpillar consumes plant tissue contaminated with the virus, the infection slowly spreads through its body, eventually causing death.
Baculoviruses have several notable characteristics that make them useful as pesticides. They contain double-stranded DNA protected by a strong capsid, making them relatively stable even during long-term storage. Their extremely specific host range also ensures they are harmless to humans, livestock, plants, and beneficial natural enemies.
Virus-based pesticides have been applied to various cultivated crops. For example, Cydia pomonella granulovirus (CpGV) is used to control codling moth in apple orchards, while Helicoverpa armigera nucleopolyhedrovirus (HearNPV) is effective at suppressing caterpillar populations in cotton and maize. Each virus targets a specific pest species, allowing farmers to choose the right virus for their needs.
Advantages of Virus-Based Pesticides
One of the greatest advantages of virus-based pesticides is their high level of safety. These viruses pose no risk to humans, field workers, or consumers because they infect only one species or a narrow group of insects. This makes them highly suitable for organic farming or production systems that emphasize food safety.
Another major benefit is that these viruses degrade easily in nature. This means they do not leave behind harmful residues. Unlike chemical pesticides that can persist in the environment for long periods, baculoviruses break down naturally, resulting in minimal environmental impact. With the growing demand for sustainable agriculture, this advantage becomes especially important for many farmers.
Why is Further Development Still Needed?
Despite offering many benefits, virus-based pesticides face several challenges. One challenge is the relatively high production cost, as viruses must be mass-produced using specific methods. This process requires time and specialized facilities, which leads to higher product prices.
Viruses are also highly sensitive to ultraviolet (UV) light, which can degrade them after application in the field. This means farmers often need repeated spraying to maintain effectiveness.
With all their strengths and weaknesses, virus-based pesticides remain one of the most promising innovations in modern pest management. Continued advances in technology and more stable formulations are expected to overcome current limitations, allowing virus-based pesticides to be used more widely in the future.
The development of virus-based pesticides such as baculoviruses depends not only on their selectivity and safety, but also on product quality and consistent field performance. Virus stability, infectivity against target pests, and safety for non-target organisms must be demonstrated through standardized laboratory testing.
Read more:
3 Recommended Pesticide Lab Tests to Pass the Ministry of Agriculture’s Distribution Permit!
Without robust test data, the full potential of virus-based pesticides cannot be effectively optimized or widely applied. IML Testing and Research supports the development of virus-based pesticides through comprehensive laboratory testing services, including stability and quality testing, evaluation of biological efficacy against target pests, and safety assessments to support responsible use.
Consult with IML Testing and Research to ensure your biopesticide products are scientifically validated, effective, and aligned with sustainable pest management practices.
Author: Dherika
Editor: Sabilla Reza
References:
Wend, K., Zorrilla, L., Freimoser, F.M., & Gallet, A. (2024). Microbial Pesticides – Challenges and Future Perspectives for Testing and Safety Assessment with Respect to Human Health. Environmental health, 23, 49, 1-29. https://doi.org/10.1186/s12940-024-01090-2.
Gelaye, Y., & Negash, B. (2023). The Role of Baculoviruses in Controlling Insect Pests: A Review. Cogent Food & Agriculture, 9(1), 1-12. https://doi.org/10.1080/23311932.2023.2254139.
