Patent ID: 7624533

Claim:
An apparatus for control of relevant pollen to or from a normally wind-pollinated or insect-pollinated plant which includes reproductive parts separated from each other on the plant, comprising: a. a covering adapted for placement over at least a substantial part of a plurality of plants, the substantial part of each plant comprising the separated reproductive parts and a portion or portions of the plant therebetween; b. the covering forming an enclosure having a top, an intermediate portion, and a bottom; c. the covering comprising a woven fabric material which has: i. relatively high permeability to air and moisture to allow effective transport of gas and water to and from the plants, the relatively high permeability comprising a Frazier value of approximately 650-1000 ft 3 /ft 2 /min. or higher; ii. pores of relatively small pore size, the pores comprising a very high frequency of pore size adapted to effectively block relevant pollen from passage to or from the plants; iii. substantial light transmissivity to allow effective passage of light to the plants, the substantial light transmissivity comprising a PAR transmission % for 400-700 nm light of at least 75%; iv. relatively light weight; and v. resistance to deformation, tearing, and puncture during normal handling and moderate to high wind for the growing environment.