Does this spray in a mist or in a stream line?

It is a stream. Easily shots 3 feet or more

Is this a dry spray. Does it leave residue?

It isn't a dry spray. It sprays wet and does cover a good area. When it dries, you aren't able to see it. It does dry fairly quickly!

Can you spray this around doors so insects won't come inside? And does it really kill scorpions?

This is the only thing I have found that kills scorpions on contact. But you cant use it as a barrier to stop them. You have to spray it directly on the scorpion. The only thing that works as a barrier to kill scorpions is diatomaceous earth.

How does it work on egg sacs?

I’ve sprayed and waited. Then whipped away egg sacs to dispose of. Works great. Sprays out far and fast.

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Black Flag Spider and Scorpion Killer, Aerosol, 16-oz

Black Flag Spider and Scorpion Killer, Aerosol, 16-oz

Product ID: 5453888

Details

Brand
Black Flag
Item Form
Spray
Item Weight
1.3 pounds
Liquid Volume
17 fluid
Specification Met
EPA

⏳Up to 16 weeks residual effect

🏠Safe for indoor & outdoor use

🕷️Kills spiders & scorpions on contact

Description

🕸️ Defend your domain—spiders and scorpions don’t stand a chance!

USER FRIENDLY AEROSOL - 16 oz aerosol with a clean, visible foam spray for precise application and no mess.
VERSATILE APPLICATION - Effective indoors and outdoors, safe around baseboards, under appliances, and in garages without staining.
LONG LASTING PROTECTION - Keeps your home and yard pest-free for up to 4 months—because who has time for repeat sprays?
INSTANT PEST TERMINATION - Powerful formula with 0.25% prallethrin & 0.035% lambda-cyhalothrin delivers immediate kill on contact.
TARGETED FOR DEADLY PESTS - Kills dangerous spiders like black widow, brown recluse, and wolf spiders—protect your space with confidence.

Black Flag Spider and Scorpion Killer is a potent 16 oz aerosol spray formulated with prallethrin and lambda-cyhalothrin to kill spiders and scorpions on contact. It offers up to 16 weeks of residual pest control indoors and outdoors, targeting even the most dangerous species like black widows and brown recluses. Safe for use around the home without staining, this trusted formula ensures a spider and scorpion-free environment with easy, mess-free application.

Specifications

ASIN	B00AA8WSKW
Best Sellers Rank	#12,927 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #289 in Insect & Pest Repellent Sprays
Brand Name	Black Flag
Customer Reviews	4.6 4.6 out of 5 stars (2,146)
Global Trade Identification Number	00891549110271
Included Components	1 17.5 oz Spider and Scorpion Killer Aerosol
Item Form	Spray
Item Type Name	Spider and Scorpion Killer
Item Weight	1.3 pounds
Liquid Volume	17 fluid ounces
Manufacturer	United Industries
Model Number	HG-11027
Part Number	11027
Specification Met	EPA
Target Species	Spider
UPC	891549110271
Unit Count	1 Count
Warranty Description	Warranty

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