Sentence examples for a pyrethrum based from inspiring English sources
Purchase a pyrethrum based spray.
The insecticide used to spray the houses was pyrethrum based, sold under the label of Premium Killer(r) (NIRA BVBA, Antwerp, Belgium), a brand commonly used by the population in this area.
Organic gardeners may want to try these bugs with neem or pyrethrum based sprays.
Inspectors sometimes also inject a pyrethrum-based "flushing agent" into crevices to help reveal where bugs may be hiding.
Mice have a pyrethrum oral LD50 of 370 mg/kg (Occupational Health Services New York 1987).
A pyrethrum spray catch method was used with white spreadsheets [ 19].
In our surveys the entomological data are based on pyrethrum spray catches, a method that can be less accurate as compared to human landing catches on adult volunteers.
In 1997 a phenothrin mousse was developed based on a concept developed in Australia using natural pyrethrum.
Entomological measures were based on indoor pyrethrum spray catches carried out monthly between August and November '94, in March '95, and between July and October '95 and '96.
Pyrethroids (PYRs), a family of synthetic insecticides which are structurally based on the natural pesticide pyrethrum [ 11], have been identified as potential endocrine disruptors [ 10, 12- 14].
