Mandevilla Whitefly Infestation Indoors: Neem Oil Solution

Whiteflies and White Nests on Overwintered Mandevilla

Mandevilla brought inside for winter in Minnesota; after two weeks, infested with tiny white flies (like fruit flies) and white nest-like structures on leaves and vines. New growth present, otherwise healthy.

Treatment

Spray with 100% pure neem oil (organic). Alters leaf taste so bugs leave. Doesn't wash off. Spray soil and pot too. One application protects; only reapply to new growth if needed.