Biological Caterpillar & Webworm Control
Biological Caterpillar & Webworm Control
Summit's Biological Caterpillar and Webworm Control is an Easy-to-Mix Liquid concentrate. The active ingredient is Bacillus thuringiensis subsp. kurstaki (BTK), a species specific biological larvicide that kills only leaf eating caterpillar pests (Lepidoptera).
- Biological control for destructive caterpillar pests
- Will not harm birds, earthworms, or beneficial insects such as honeybees and ladybugs OMRI listed and approved for use in organic gardening
- May be used on edible plants, fruits, and vegetables up to day of harvest
- Same active ingredient as "Dipel" and "Thuricide"
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We offer custom mixes at an additional $50 charge. Simply reach out!
How Ordering Works
Add your products to cart
Browse mulch, soil, stone, sand, and more. Pick the quantities you need. One simple checkout gets everything ready for your project.
Choose pick-up or local delivery
Choose pickup to have your order ready at our yard, or local delivery to bring it straight to your driveway or job site. Either way, we’ll handle the heavy lifting.
Add your information
At checkout, provide your name, phone number, and address for delivery, plus your preferred date and morning or afternoon window. This helps us schedule your order the way that works for you.
We'll see you soon!
Our team will give you a quick call to confirm your order and timing. Once everything’s set, you’re good to go—we’ll have it ready or deliver it when expected.
All About Supersacks
What are Supersacks?
What are Supersacks?
Super sacks are industrial-grade flexible bags designed to store and transport bulk materials. Rather than loose soil or material, consider it like a shopping back for your product!
How much do they cost?
How much do they cost?
Each sack is $30 in addition to the material cost.
What is the cost?
What is the cost?
All our supersacks have a flat $150 delivery fee up to 20 miles from Sienna Mulch.
What's the benefit of a Supersack over loose material?
What's the benefit of a Supersack over loose material?
This option is for the homeowner and landscaper that loves organization and cleanliness. Also, it allows you to order multiple items in one delivery.
