Growing tomatoes successfully in Phoenix has always been a challenge. We have successfully identified varieties that work here and how to grow them. What vexes us seriously is how to deal with spider mite infestation that comes on strong around the middle of May and takes everything out by the end of June. This is our pattern every year. Now we still get substantial harvests by the end of June and its still worth growing…but I really do hate loosing healthy plants to the little bastards.
So far we have tried daily jets of water to knock them off (This helps a little) and pyrethrin (which makes things far worse). Anyone out there have a organic or non organic solution that works? When its cool enough we spray omni oil and that keeps them well in check…but around May 15th it gets too hot here to use oil.