Aside from Neem oil, insecticidal soaps, and horticultural oils, the most effective tool against aphids is a hard stream of water from the hose.
Birds love to eat these beetles, so attracting them to your garden can help with a large population.
Place a collar around the stem , which creates a barrier that the worms cannot climb over.
One way to control an infestation is to dust diatomaceous earth on the plant and surrounding soil.
The best way to get rid of hornworms is to pick them off by hand and place them in a bucket of soapy water.
The best way to overcome leaf miners is by bringing in some natural predators like parasitic wasps.
The best defense against psyllids are predatory insects like spiders, damsel bugs and minute pirate bugs.