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How To Kill Insects
On Indoor Plants
> Insect pests on plants which are kept indoors are likely to be forgotten with outdoor gardening, says J. M. Amos, associate Extension entomologist at Virginia Tech. Insects likely to give trouble are; scale on ferns, begonia, and cacti; mealybugs on coleus aphids on tender leaves and flower buds; mites or red spider on rubber plants and most indoor plants. Sometimes whitefly and springtails are also a problem. Amos suggests that if the plant is very badly infested it may be more work that it is worth to save it, unless it has a particular sentimental value. For large plants which cannot be inverted into a solution and dipped, an aerosol spray bomb or a, compressed air sprayer may be used to apply the insecticide. Most of the insects on plants indoors must be killed by contact with the insecticide, and dipping the plants into a bucket of spray solution is the easiest way of establishing contact with the insect. A crushed paper or a cardboard on the top of the pot will prevent the soil from dropping out. Lukewarm water may be used to encourage a better kill, but never use hot water as it will injure the • plants. Spray materials containing malathion or pyrethrum should be effective against most household plant pests and directions on the
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