brightener some new role

 FWA scalability of insect virus manifested in two aspects, one is to expand the domain host insect viruses . One found in normal circumstances alfalfa looper nuclear polyhedrosis virus and  methyl tin stabilizer the margin of moth insect pox virus does not infect the gypsy moth , but with fluorescent brightener Phorwit AR enhanced , they can become infected gypsy moth . The second is that some insect viruses in the role of FWA change route of infection . 1994 Dougherty found by experiment gypsy moth nuclear polyhedrosis virus oral extracellular type virus does not infect gypsy moth
Many studies and tests found DSD Acid - triazine type fluorescent brighteners individual species with specificity , the typical varieties are fluorescent brightener Tinopal LPW. This specificity manifested in the following aspects:
( A ) wide range of applications . Fluorescent brightener Tinopal LPW for many kinds of insects tested nuclear polyhedrosis virus has enhanced role, and gypsy moth cytoplasmic polyhedrosis virus , the  antimony flame retardant virus particle body gypsy moth , Dendrolimus cytoplasmic polyhedrosis virus and so reflect good enhancement.
( 2 ) enhance the effect. Found by experiment , a fluorescent brightener Tinopal LPW and some other varieties of optical brighteners , compared with the same concentration under the same conditions added to some insect viruses infect the host , the infection good activity, high efficiency ratio , kill worm speed. Institute of Entomology, Central China Normal University, Guo Junhui , PENG Jian-xin et al to 3rd instar bollworm pest chosen as test fluorescent brightener Tinopal LPW and fluorescent brightener VBL, Fluorescent Brightener CBS-X three varieties are prepared as 1 % concentration , testing them on celery exigua nuclear polyhedrosis virus synergism was found  organic pigments with the virus do not add fluorescent brightener compared synergistic ratios were 218 ; 32.1 and 26.26 times , killing speed were increased by 28% ; 17.3% 13.1%. Other tests also confirmed that a variety of fluorescent brightener Tinopal LPW role of insect viruses and insects are extremely significant system performance and stability enhancement , to be research FWA ( stilbene ) enhancing effect on insect viruses standard samples . ( 3) The use of low concentration . As mentioned above , the product is still strong at 0.01%, the enhanced effect ⑵. Studies have shown synergistic activity of its optimal concentration of 0.25% ~ 1%