About Lesson
Advantages and disadvantages of biological control method
Advantage
- They are host specific, thus no effect on non-target organism.
- They are safe to humans, animals and environment
- There is no problem of phytotoxicity or resistance
- Once they get established, they continue to perpetuate themselves and maintain equilibrium for many years.
- Even those initial expenses are high, it is economical in long run.
Disadvantage
- Highly trained and technical persons are required for searching, rearing of parasites and their release
- It is very expensive to explore, export, multiply and establish in new area.
- Unpredictable change in climatic condition may impair the efficacy of pathogens and natural enemies.