Horticultural oils are useful for which pests?

Horticultural oils are useful for which pests?

• A. Mites, Aphids, and armored scales
• B. Fungi
• C. Bacteria
• D. Weeds

Answer: (A)

Horticultural oils work by forming a coating on plant surfaces that smothers pests found there. This makes them especially effective against mites, aphids, and armored scales, which spend their life stages on leaves and stems and can be killed by the oil film. They aren’t fungicides or bactericides, so they don’t target fungi or bacterial pathogens, and they aren’t herbicides, so they don’t kill weeds. Use them when these pests are present and conditions are right for the oil to spread and be tolerated by the plant, following label directions for timing and rates.

Horticultural oils work by forming a coating on plant surfaces that smothers pests found there. This makes them especially effective against mites, aphids, and armored scales, which spend their life stages on leaves and stems and can be killed by the oil film. They aren’t fungicides or bactericides, so they don’t target fungi or bacterial pathogens, and they aren’t herbicides, so they don’t kill weeds. Use them when these pests are present and conditions are right for the oil to spread and be tolerated by the plant, following label directions for timing and rates.