Q.What is the best systemic bug poison for my potted hibiscus?
My hibiscus has red spider. We have tons of spruce trees outside!
HELP! Lana

Certified GKH Gardening Expert
It is very important to take all necessary precautions to ensure that systemics are used correctly. This article will help you with systemic use: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/systemic-pesticide-in-gardens.htm
Alternatively, you can use an organic systemic such as neem oil. This article will help: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
Acids in Rosemary oil have shown promise as a systemic as well, and is used by several companies for organic systemic pesticides.