Downtoearthdigs
Answered on July 10, 2017
Avoid splashing water unto the leaves. You can spray the plants with Neem Oil.
Some pests are small and may not be able to be seen.
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
http://nativeplants.hawaii.edu/plant/view/Portulaca_molokiniensis
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