Southern Ag Thuricide BT Caterpillar Control 8 oz Review

An 8 ounce BT concentrate for caterpillar and worm control on backyard vegetables, fruiting plants, ornamentals, and small spray routes.

Seller pricing varies Updated May 22, 2026

Bottom line

Southern Ag Thuricide BT Caterpillar Control 8 oz gives small garden routes a compact concentrate for label-led caterpillar and worm spray work.

Southern Ag Thuricide BT Caterpillar Control 8 ounce bottle

What this review covers

The useful details are the 8 ounce concentrate size, BT identity, caterpillar-control role, and fit with measured hand-sprayer routines.

The upside

  • The 8 ounce bottle fits a small plant-care shelf and suits focused spray routes.
  • BT concentrate gives caterpillar and worm checks a clearly named product role.
  • The bottle size pairs well with a hand sprayer, measuring spoon, waterproof label, and rinse towel.

The tradeoffs

  • Concentrate use calls for careful measuring, label reading, sprayer labeling, and cleanup.
  • Leaf coverage and repeat checks matter when caterpillar feeding continues through active growth.

Fit and feel

Good match:

This bottle suits gardeners with a focused caterpillar or worm-control route around vegetables, fruiting plants, ornamentals, and short backyard beds.

What to know:

Plan the spray route before mixing, label the sprayer, and revisit treated plants during regular leaf checks.

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Full review

A compact BT bottle for focused plant checks

Southern Ag Thuricide BT Caterpillar Control in the 8 ounce bottle gives gardeners a small concentrate for caterpillar and worm spray routines. It fits well near a hand sprayer, measuring spoon, gloves, waterproof label, and rinse towel.

The compact size makes sense when the garden route is focused: a tomato row, brassica patch, herb bed, fruiting shrub, or ornamental edge that needs a label-led spray plan.

A measured routine matters

This is a concentrate, so the work starts at the shelf. Read the label, measure the amount for the sprayer, mark the sprayer clearly, and keep the route in a garden note.

BT products belong on leaves where feeding activity is being checked. A slow walk around leaf tops, undersides, stems, and new growth keeps the routine grounded in what the plants are showing.

Fits a small refill station

The 8 ounce bottle is easy to store upright in a small bin. Keep it away from harvest containers, seed packets, pet gear, and kitchen supplies. Store the measuring tool beside the bottle so each spray round starts cleanly.

A rinse brush and towel help finish the session before the sprayer returns to storage.

Good match

This bottle suits gardeners with a focused caterpillar or worm-control route around vegetables, fruiting plants, ornamentals, and short backyard beds.

What to know

Plan the spray route before mixing, label the sprayer, and revisit treated plants during regular leaf checks.