Tomato Pinworm Control, 1975

Tomatoes were direct seeded January 20, 1975 in Rockdale soil. Plots were thinned to give a density of 1 plant per ft. Plots consisted of single rows on 6 ft centers, 36 ft long. Insecticides were applied weekly from March 20 to April 25. The first two applications were made with a 2-gal hand held sprayer which delivered 50 gal per acre at 30 to 40 psi. The remaining applications were made with a tractor mounted sprayer with 5 nozzles per row. These treatments were applied at a pressure of 150 psi in 100 gal of water per acre. On April 16 the number of pinworm mines per 4th leaf from the plant terminal of 10 randomly selected leaves per plot were counted. All the fruit was picked and weighed April 28. The percent pinworm damaged fruit was determined by examining 25 randomly selected tomatoes from each plot. Means were separated using Duncan’s multiple range statistic.