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ARS Home » Southeast Area » Tifton, Georgia » Crop Protection and Management Research » Research » Publications at this Location » Publication #128176
Title: EVALUATION OF IN-LINE INJECTED MATERIALS AS ALTERNATIVES TO FUMIGATION WITH METHYL BROMIDE.

Author
item SEEBOLD, K - UNIVERSITY OF GEORGIA
item CSINOS, A - UNIVERSITY OF GEORGIA
item Davis, Richard

Submitted to: Phytopathology
Publication Type: Abstract Only
Publication Acceptance Date: 4/1/2002
Publication Date: 6/14/2002
Citation: Seebold, K.W., Csinos, A.S., Davis, R.F. 2002. Evaluation of in-line injected materials as alternatives to fumigation with methyl bromide [abstract]. Phytopathology. 92(Suppl.6):152.

Interpretive Summary:

Technical Abstract: Injection of pesticides through irrigation tape is a promising means of delivery for methyl bromide (MeBr) alternatives. Emulsifiable formulations of 1,3-dichloropropene plus 35 pct. chloropicrin (1,3-DC) were applied prior to transplanting of cucumber to plastic-mulched beds at 20.5 and 35 gallons per acre (GPA) by injection through irrigation tape to evaluate their efficacy against soilborne pathogens and nematodes. Other treatments included metam sodium injected at 37.5 GPA simultaneously with 1,3-DC (20.5 GPA) or 3 days afterward. Total soil populations of Pythium spp. prior to transplanting were reduced 10-fold or more by all treatments, and all treatments were equal to MeBr. Greatest suppression of Fusarium spp. in soil was seen with MeBr, 1,3-DC at 35 GPA, or 1,3-DC plus metam sodium. Nematode injury at season's end was least with 1,3-DC (alone at 20.5 or 35 GPA, or with metam sodium) and MeBr when compared to the control. Injection of 1,3-DC plus metam sodium via irrigation tape appears to be an effective alternative to fumigation with MeBr for suppression of soilborne pathogens.