The effect of maleic hydrazide in controlling plant populations in the strawberry in southwest Virginia

The effects of Maleic Hydrazide (MH) in controlling strawberry plant populations were studied. Foliar applications of MH at 1000 ppm resulted in reduced runner length. The effect of MH sprays appeared to be directly related to the stage of rooting at the time of spray applications. Rooted plants were affected less than non-rooted plants. By the end of the growing season (Oct. 31) plant populations were significantly less than the control (matted row) and equaled that of a hand thinned treatment. Sprayed and hand-pruned plots were significantly lower in yield and fruit number. Berry size was the same for all treatments.