Wednesday, October 9, 2013

Pyrethrum Extract Applications


Pyrethrum Extract is a admixture of three by itself occurring, carefully accompanying insecticidal ester of

chrysanthemic acerbic (cinerin I, jasmolin I and pyrethrin I) and three carefully accompanying insecticidal

ester of pyrethric acerbic (cinerin II, jasmolin II and pyrethrin II). The three chrysanthemic acerbic esters

are frequently articular as “pyrethrins I”, and the three pyrethric acerbic esters are articular as

“pyrethrins II”. Collectively, the six esters are alleged “pyrethrins”.

Applications:

A accustomed antecedent of insecticide. The alive components, pyrethrins present in the berry cases, are

extracted and awash in the anatomy of an oleoresin. This is activated as a abeyance in baptize or oil, or as a

powder. Pyrethrins advance the afraid systems of all insects, and arrest changeable mosquitoes from biting.

Have an insect abhorrent aftereffect in beneath amounts. They are adverse to fish, but are far beneath baneful

to mammals and birds than abounding constructed insecticides and are non-persistent, getting biodegradable and

aswell breaking down calmly on acknowledgment to light. They are advised to be amidst the safest insecticides

for use about food. Kenya produced 90% (over 6,000 tonnes) of the world's pyrethrum in 1998, alleged py for

short. Production in Tanzania and Ecuador is aswell significant. C. coccineum- (Persian chrysanthemum) is

built-in to Caucasus and looks somewhat like a daisy. It produces ample white, blush or red flowers. The

leaves resemble those of ferns, and the bulb grows to amid 30 and 60 cm in height. The beginning aeon is June

to July in abstemious climates (Northern hemisphere). C. coccineum aswell contains insecticidal pyrethrum

substances but it is a poor antecedent compared to C. cinerariifolium.

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