Treatments for the pests and pathogens growers actually face: spider mite and insect controls, systemic and soil drench products, biological insecticides, fungicides for powdery mildew and root disease, neem and horticultural oils, and plant washes.
Read moreRead less
Insects and mites
Contact sprays knock down spider mites, aphids, thrips and whiteflies on the leaf. Systemic and soil drench products are taken up by the plant and protect new growth for weeks. Biological insecticides such as B.t. and pyrethrins target specific pests with less residue, and horticultural oils smother eggs and soft bodied insects.
Disease
Fungicides and plant washes control powdery mildew, botrytis and leaf spot on the foliage. Root drenches and biological controls address root rot and fungus gnats in the media. Rotate modes of action so pests do not adapt.
Using them safely
Follow the label for rate, timing and re-entry. Spray with lights off and fans off, cover the undersides of leaves and stop foliar treatments once flowers set. Wear gloves and a mask, and keep separate sprayers for pesticides and nutrients.
Pest & Disease Control FAQ
What kills spider mites?
Contact miticides, horticultural oil and neem oil on the leaf, repeated every few days to catch new hatchlings, plus predatory mites for ongoing control.
Can I spray during flowering?
Avoid foliar sprays once flowers set. Use root drenches, biological controls and environmental fixes instead.
Is neem oil safe for plants?
Yes at label rates, applied with lights off. It can burn leaves under strong light while wet.
