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What is the difference between alpha cypermethrin and technical cypermethrin?
Both very effective bee killers. Half life below surface approximately 200 days. No known effective disposal or decontamination method. The MSDS says 'dispose of in a safe manner'.
The oral ld50 value for cypermethrin is 247 mgkg compared to 5000 mgkg for hexaflumuron therefore what is the more toxic of these two pesticide?
Cypermethrin, assuming the LD50s for the two chemicals are for the same period of time. LD50 is the lethal concentration where half of the individuals die in a given time period. Higher numbers mean that is takes more of the chemical to kill organisms, whereas lower numbers mean it takes less of the chemical to kill organisms. LD50s depend on what animal was used in the experiment.
Who invented permethrin and other synthetic pyrethroids.?
There are two types of synthetic pyrethroids 1) light unstable and 2) light stable synthetics. The first class, of which bioresmethrin or phenothrin are examples, were discovered in different laboratories around the world. These fast acting agents are primary used for specialty purposes in non-agricultural markets like public health, animal health and consumer. The preparation of a the first slight unstable synthetic pyrethroid, bioresmethrin, is attributed to Dr. Michael Elliott at the UK Agricultural Laboratory at Rothamstead England in 1967. The second class of which permethrin cypermethrin and deltamethrin are examples were also discovered by Dr. Elliott in the early 1970's. These halogenated derivatives proved to be light stable. Licenses for commercial use of these discoveries were made to several chemical companies who developed them for both agricultural and specialty uses. See news article: http://www.rothamsted.ac.uk/corporate/PressReleases/PressReleases.php?PRID=6
Does the same organism always react to the same stimulus at the same way?
does the same organism always react to the same stimulus at the same way
Are the numbers of neutrons the same for elements in the same column on the periodic table?
No. It is not the same. the number of valence electrons are same for the elements in the same column (group).
Is cypermethrin a carbamate?
No it is a pyrethroid
Are slugs bad for pill bugs?
Yes, slug pesticide can kill pillbugs. Scientists classify pillbugs as crustaceans and invertebrates and slugs as shell-less terrestrial gastropod molluscs. The two arthropod types in question do not always respond to one and the same pesticide, but they will when the active ingredients are beta-cyfluthrin, bifenthrin, carbaryl, cyfluthrin, cypermethrin, deltamethrin, esfenvalerate, gamma cyhalothrin, lambda- cyhalothrin, or permethrin.
Is cypermethrin a systemic insecticide?
Yes, cypermethrin is a systemic insecticide.Specifically, a systemic insecticide controls insects by disrupting the pests' life-sustaining processes and structures. In the case of cypermethrin, it is a case of attacking the central nervous system. The results will include paralysis or uncoordinated movements which ultimately lead to death.
Where do you get Cypermethrin and Alphacypermethrin?
for Technical grades , contact : venusimpex@yahoo.com
Is Cypermethrin good to kill ticks?
Yes it is, kills them in a matter of seconds.
What makes one louse able to survive treatment with permethrin and another louse unable to survive?
There are genetic variations in lice. Not all lice are the same. So sometimes one with a particular gene can survive treatment with permethrin and another cannot.
Will permethrin kill crickets?
Permethrin will kill crickets that are in the area where it is sprayed. It does not keep crickets from coming back to that area though.
Can you use sulfur for scabies?
permethrin
Can Permethrin Cream be used for psoriasis?
no
Can you buy 5 percent permethrin cream over the counter?
You can buy permethrin over the counter at a %1 strength which is strong enough to kill lice but the kind of permethrin (%5 strength) that cures scabies you need a prescription for
What is the difference between alpha cypermethrin and technical cypermethrin?
Both very effective bee killers. Half life below surface approximately 200 days. No known effective disposal or decontamination method. The MSDS says 'dispose of in a safe manner'.
Will permethrin kill yellow jackets?
Permethrin does kill yellow jackets as well as hornets, ground bees, wasps, and other stinging insects. You can discourage yellow jackets from nesting in trees and shrubbery around your yard by spraying them with permethrin as well.
