Q&A with Jorge
Mites and Yellow Leaves
It’s my first time growing, and I’ve had a li’l friend in my room for over a month. We have spider mites, and I’m pretty sure we got the bad boys. We use Schults insect spray, but the damage to the leaves is terrible. I’m using Miracle-Gro soil and all-purpose 24-8-16 Miracle-Gro food. The bottom leaves are falling off and getting yellow. The neighbor’s cat put a couple of holes in the damaged leaves, too. The seventh set of leaves is growing on top. The overall height is, like, stunted. Help!
The spider mites have to go! First, clean the room well and spray it with disinfectant. Don’t give mites a place to live. Clean off and disinfect containers and the floor, too. Next, smear a line of Tanglefoot around the lip of each container. This will isolate the pests to a specific container. Spray undersides of leaves with aerosol pyrethrum. My favorite is Whitmire’s X-Clude, because the pyrethrum, which generally has only a two-hour life span, is encapsulated. Encapsulation gives the pyrethrum a life of up to 24 hours.
Change fertilizers to a balanced organic blend or a high-quality hydroponic mix. Changing to such a fertilizer will solve many problems quickly. And keep the cat out of the room! Cats are often attracted to cannabis plants because the leaves move. Cats also dig in pots, which disturbs surface roots, and their hair sticks to resinous buds.