Many people are naturally concerned about the products lawn care companies use on the landscape. This simple entry is not designed to give you all the answers. It is to point out the level of danger or toxicity as they relate to common household products.
Did you now that each chemical has a measured LD50 rating? See the definition below
In toxicology, the median lethal dose, LD50 (abbreviation for “Lethal Dose, 50%”), LC50 (Lethal Concentration, 50%) is the dose required to kill half the members of a tested population. LD50 figures are frequently used as a general indicator of a substance’s acute toxicity. The test was created by J.W. Trevan in 1927. The concept, and calculation of the median lethal dose for comparison purposes, is widely used for purposes as pesticide by companies as Emergency Pest Control Orangeville that specialize in this.
Generally the lower the score the higher the danger of the product. See below a sample list of standard landscape products and the LD50 score. Below find some sample household products for comparison.
Products used by landscapers LD50 score Use
2-4-D (Ld score of 700) Used for controlling turf weeds
Barricade (Ld score of 5000) Used to prevent crabgrass
Manage (Ld score of 1287) Used for controlling turf weeds
merit[imidicloprid] (Ld score of 1858) Used to control insect pests in the landscape
orthene[acephate] (Ld score of 1447) Used to control insect pests in the landscape
Roundup[glyphosate] (Ld score of 5600) Used to kill weeds in the pavement
Sevin[carbaryl (Ld score of 307) Used to control insect pests in the landscape
talstar[bifenthrin] (Ld score of 623) Used to control insect pests in the landscape
Household and other products for comparison LD50 score Use
Arsenic (Ld score of 15) Hopefully not used in your home but a basis for comparison
Aspirin (Ld score of 1240)
CAFFEINE (Ld score of 192) Starbucks! We drink this!
Cyanide (Ld score of 6) Hopefully not used in your home but a basis for comparison
DDT (Ld score of 87) Hopefully not used in your home but a basis for comparison
Deet (Ld score of 1800) Used in most insect repellants we spray this on our skin!
Frontline[flea/tick] (Ld score of 2995) We apply this to our pets!
Lysol (Ld score of 500) Clean Clean here, rub rub there
Nicotine (Ld score of 50) No need to comment on this one
Oil (Ld score of 5000) We handle this with our cars
Revolution[flea/tick] (Ld score of 1600) We apply this to our pets!
Salt (Ld score of 3300) Where would we be without this
Tilex (Ld score of 5000) Mold and mildew be gone
Toilet Cleaner (Ld score of 1850) Keep that bowl tidy!
The proper and safe application of landscape products is very important. Hopefully you can see from this chart, that the products used are no worse that the ones you use at home.