Vol. 16—1962 - NorthEastern Weed Science Society

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ADDITIONALFIELD STUDIES WITH SOLAN
AS A
HERBICIDE FOR TOMATOES
~nald H. Moorel
Research and Development Department
NIAGARACHEMICALDIVISION
. FMC CORPORATION
Middleport 1 New York
Solan l N-(3-chloro-4-methylphenyl)-2-methyl-pentanamide
has been tested by a number of investigators as a herbicide
for tomatoes l over a period of four years.
Sweet and Rubatzky (1) found Solan to give commercial
weed control and to be outstanding in lack of crop damage to
both transplant tomatoes and field seeded tomatoes. Saidak and
Rutherford (2) in 1959 and 1960 trials l found Solan to be reliable
and effective as a herbicide in tomatoes when applied as
a post-emergence spray, one month after transplanting l to weeds
less than 3 inches high. Schubert and Hardin (3) found Solan to
give commercial control of broadleaf weeds in post-emergence
treatments. Grass control was satisfactory only for about one
month if the grass was not more than l~ inches high at time of
spraying.
Results of preliminary field studies of Solan as a
poxt -emer-gence herbicide tlor tomatoes have been presented previously
by Moore and Dor~chner (4). It is the purpose of this
paper to summarize performance data which have been obtained
over the past two years.
METHODSANDMATERIALS
Tests in 1960 were conducted on the varieties Fireball
and Red Jacket. These included both field seeded and field transplant
stock. Treatments were applied as broadcast sprays using
a knapsack sprayer. Fifty gallons of total liquids per acre were
applied. The experimental design was one of randomized complete
block with three replications.
In 1961 experimental procedures were similar l but with
the follOWing exceptions: Sprays were applied at 40 psi and a
volume of 30 1 rather than 50 gallons of total liquids per acre
was utilized. In some instances rather large areas were sprayed
With a given treatment. SUch plots were not replicated. The
formulation of Solan used for all tests was a miscible formulation
containing 4.0 pounds of active material ner ~allon.