How effective is this on spiders?

Does not work on spiders. Not very effective on stable flies either. I am going to change products next refill. I think my insects have become immune to it. Worked very well in The beginning.

shelf life of product?

Really don't know. I can say we buy when drum is empty for fly spray system. Has lasted 2 years mixed up in drum. Hope this helps.

I am looking for concentrate for a fly system in a horse barn. can anyone tell me if this works as well as the $200 bottle? i would love to save $$

The label on the bottle has the mixing concentrations for various applications. Typically, and what I use, is 1/2 gallon of the product in a about a 55 gallon drum. The rest is water, of course. My system is set to spray for 30 seconds twice daily. In a single 24 period, I noticed an 80% drop in flying insects around the building.

does it damage the plants?

Yes it does. It leave an oily layer on everything it is spray on, and yes for small ornamental plants it kills their leafs.

Pyranha Stock Guard | Desertcart Austria

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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€ 230.46

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Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛡️ Defend your herd, repel the pests, and own the barnyard buzz!

COMPREHENSIVE PEST DEFENSE - Repels flies, lice, ticks, mites, gnats, and beetles for healthier livestock environments.
ECONOMICAL BULK CONCENTRATE - 64 oz bottle dilutes to 50-200 gallons, delivering long-lasting, cost-efficient fly control for large-scale operations.
FLEXIBLE APPLICATION OPTIONS - Use as a direct spray, premise treatment, or on back rubbers—integrates seamlessly into your existing animal care routine.
VERSATILE LIVESTOCK PROTECTION - Safe and effective on cattle, sheep, goats, swine, horses, poultry, and dogs—one solution for all your animals.
TRUSTED BRAND WITH PROVEN RESULTS - Highly rated and ranked #68 in horse fly repellents, ensuring reliable protection season after season.

PYRANHA Stock Guard Concentrate is a powerful, broad-spectrum insect repellent formulated with 10% permethrin and 10% piperonyl butoxide. Designed for use on a wide range of livestock and pets, this 64 oz liquid concentrate dilutes to cover up to 200 gallons, providing cost-effective, long-lasting protection against flies, lice, ticks, mites, gnats, and beetles. Ideal for barns, dairies, poultry houses, and swine facilities, it offers flexible application methods and is trusted by professionals to maintain healthier, pest-free animal environments.

Specifications

ASIN	B004GKOD5I
ASIN	B004GKOD5I
Active Ingredients	10% permethrin, 10% piperonyl butoxide.
Best Sellers Rank	#66,862 in Pet Supplies ( See Top 100 in Pet Supplies ) #61 in Horse Fly Repellents
Brand Name	Pyranha
Customer Reviews	4.1 4.1 out of 5 stars (70)
Date First Available	May 4, 2011
Global Trade Identification Number	00791738114649
Included Components	As shown.
Item Form	Liquid
Item Weight	4.2 pounds
Item model number	001PX110
Manufacturer	Prime Pet Deals - Code 1
Manufacturer	Prime Pet Deals - Code 1
Model Number	001PX110
Part Number	001PX110
Product Dimensions	5 x 3.5 x 9 inches; 4.2 pounds
Target Species	Cattle, sheep, goats, swine, horses, poultry and dogs
UPC	791738114649
Unit Count	4.2 Pounds

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