Patent ID: 6796083
Filing Date: 2004-09-28
Classification: A01G,A01M,G02B

Abstract:
A barrier for restricting passage of thrips therethrough, the barrier comprising a screen of polymeric material having a plurality of openings therein, said polymeric material forming said screen includes at least one additive selected from the group consisting of2-hydroxy-4-n-octoxybenzophenone; poly[[6-(1,1,3,3-tetramethylbutyl)amino]-s-triazine-2,4-diyl][[2,2,6,6tetramethyl-4-piperidyl)imino]hexmethylene[(2,2,6,6-tetramethyl-4-piperidyl)imino]]; and polymeric hindered amine light stabilizer (HALS), for increasing UV reflection of said polymeric material, and at least part of said polymeric material forming said screen includes TiO2 white pigment for being reflective of ultra-violet light having wavelengths between 320 nm and 400 nm impinging thereon, so as to repel the thrips from said screen, thereby restricting passage of the thrips through the barrier.