The UGA cotton team conducted several studies comparing Roundup Ultra and Roundup UltraMAX during the 2000 cotton season. No differences in weed control or cotton tolerance were noted when these products were applied at the same amount of active ingredient per acre. Infestations were much more intense and more widespread during 1999 and caused significant yield loss in some fields. Silverleaf whitefly has been observed in cotton for several weeks this year. However when compared with last season, populations are significantly less as a whole, but some fields have high populations.
Correct identification is important.
Many of us are more familiar with the banded winged whitefly which is much easier to control. The banded winged whitefly has faint but visible grayish bands on the wings whereas the silverleaf whitefly is solid white. Silverleaf whitefly is generally a localized pest. Eggs are oblong, pointed, and yellowish brown. The first stage upon hatching is known as the crawler that moves about searching for a suitable site to attach itself on the underside of the leaf.