The main thing about trap crops vs companion plants is what they do with pests in your garden. Trap crops draw bugs away from your tomatoes by being more tasty to them. Companion plants repel pests or help your tomatoes grow in other ways.
I used both methods in my garden last summer to test them side by side. Sunflowers at the garden edge pulled stink bugs away from my tomato rows all season long. Basil planted between the tomatoes masked their scent and kept whiteflies from finding them as fast.
Trap crops work like a sacrifice play in your garden space. You plant something that pests like more than your main crop on purpose. The bugs feast on the trap crop while your tomatoes stay safe from major damage nearby.
Texas A&M research shows sunflowers work great for trap cropping tomatoes in your garden. Stink bugs love sunflower seeds and will choose them over your tomato fruit every time. Plant your sunflowers two weeks before your tomatoes go in the ground so they bloom first.
Companion plants take a different path to pest control in your beds. They either smell strong enough to hide your tomatoes from pests or they attract good bugs that eat the bad ones. Basil and marigolds both fall into this group of helpful plants.
The right choice depends on your pest problem and garden size for best results. Trap cropping works well when you have heavy pressure from one type of bug. Companion planting fits better when you want broad protection from many pest types at once.
I now use both as part of my pest management strategies garden plan each season. Sunflowers ring the outer edge to catch stink bugs coming in from nearby fields. Basil and marigolds fill the spaces between tomato rows for day to day protection from other pests.
Watch your trap crops and remove them before pests lay eggs that hatch into more trouble. Pull sunflowers after stink bugs collect on them or spray just the trap plants to kill the pests. Let them breed there and you make your problem worse instead of better.
Start with companion plants if you are new to these methods in your garden beds. They need less timing and you do not have to kill anything at the end of the growing season. Add trap crops once you know which pests hit your garden hardest each year in your area.
Read the full article: Companion Planting Tomatoes: Proven Plant Pairings
