Which statement best describes flower thrips management?

Which statement best describes flower thrips management?

• A. They are susceptible to pesticides, but populations can be so plentiful there is little use; lacewing larvae and predatory mites are good biological agents.
• B. They are immune to pesticides and cannot be controlled biologically.
• C. They require only cultural controls and not pesticides.
• D. They respond to foliar spraying with any pesticide.

Answer: (A)

Flower thrips management is best done with an integrated approach that uses both chemistry and natural enemies. Pesticides can reduce thrips numbers, but thrips often occur in large populations and hide inside flowers, which can limit spray effectiveness and lead to resistance if sprays are overused. That’s why combining chemical controls with biological suppression works well: natural enemies like lacewing larvae and predatory mites attack thrips at different life stages and help keep populations down without relying solely on chemicals. This approach also reduces the risk of resistance and minimizes disruption to beneficial insects. The other ideas are overly simplistic. Thrips aren’t immune to pesticides, and they can be managed biologically with the help of predators. Relying only on cultural controls isn’t enough for most ornamental crops, and spraying any pesticide on foliage isn’t a reliable strategy for thrips given their habit of feeding inside flowers and evolving resistance to some chemistries.

Flower thrips management is best done with an integrated approach that uses both chemistry and natural enemies. Pesticides can reduce thrips numbers, but thrips often occur in large populations and hide inside flowers, which can limit spray effectiveness and lead to resistance if sprays are overused. That’s why combining chemical controls with biological suppression works well: natural enemies like lacewing larvae and predatory mites attack thrips at different life stages and help keep populations down without relying solely on chemicals. This approach also reduces the risk of resistance and minimizes disruption to beneficial insects.

The other ideas are overly simplistic. Thrips aren’t immune to pesticides, and they can be managed biologically with the help of predators. Relying only on cultural controls isn’t enough for most ornamental crops, and spraying any pesticide on foliage isn’t a reliable strategy for thrips given their habit of feeding inside flowers and evolving resistance to some chemistries.