Vol. 16—1962 - NorthEastern Weed Science Society

An additional 2 years of tests on field transplanted
tomatoes have continued to demonstrate the value of Solan as a
post-emergence herbicide.
Applications of four pounds of this chemical per broadcast
acre made 14 days after transplanting, and again at lay-by,
have been well tolerated by the varieties Campbell 146, Glamour,
Long Red, Marglobe, ES 24, H 1370, Homestead 24, Manalucie,
Moreton Hybrid, Trellis 22, Valiant, and Rutgers California. A
slight temporary foliage chlorosis was noted on the varieties
Roma and Homestead 61 at the four pound rate. Two applications
of Solan, each at 8 pounds, resulted in a temporary chlorosis
to Campbell 146, Glamour, Long Red, Homestead 61, H 1370, Moreton
Hybrid, Trellis 22, Valiant, and Rutgers California. The
minimum seasonal yield increase at either rate over the wltreated
for all varieties except Glamour, Homestead 61, and Roma
ranged from 64 to 243 percent. For the latter three varieties
there was an 18 and 9 percent increase, and a 5 percent decrease,
respectively.
Solan, when applied at a rate of 4 pounds per acre to
broadleaved weeds and annual grasses less than one inch in
height, provided excellent results. Repeat treatments were
necessary for seasonal control.
BIBLIOGRAPHY
1. Sweet, R. D. and W. Rubatzky, 1959, "Herbicides for Tomatoes",
Proceedings of the Northeastern Weed Control Conference,
13:84-92. - -- --
2. Saidak, W. J. and W. M. Rutherford, 1961, lIChemical Weed
Control in Tomatoes", Proceedings of the Northeastern Weed
Control Conference, 15: 124. - --- ----
3. Schubert, O. E. and N. C. Hardin, 1960, "Evaluation of
. Several Herbicides on Tomato Plants", Proceedings of the
Northeastern Weed Control Conference, 14: 8i-85. ----
4. Moore, D. H. and K. P. Dorschner, 1960 "preliminary Studies
of Solan as a Post-emergent Herbicide for Tomatoes", Proceedings
of ~ Northeastern Weed Control Conference, 14:85-101.
137