EFFECT OF INSECTICIDES ON TOMATO INSECTS, 2013

‘Ace 55’ fresh market tomato seedlings were transplanted in a sandy loam type soil on 23-24 May 2012 at the University of California’s South Coast Research and Extension Center. Experimental plots were 3 rows wide (5-ft centers) by 40 ft long and separated by a 3-ft buffer. The tomato transplants were drip irrigated (water pH 7.2 7.5). Treatments were replicated 4 times in a RCB block design. Foliar applications were initiated at first fruiting. Dupont rotations of treatments consisting of HGW86/ Admire Pro/ Radiant/ Pounce/Avaunt/ Coragen/Agrimek plus Oberon were applied on (21, 24 May; 13 Jun; 19, 26 Jul and 2, 9, 16 Aug). The Admire Pro (10.5 fl oz) treatments were applied as a post plant drench. HGW86 was applied as a pre-transplant drench (13.1 fl oz) and post-plant drench (6.6 fl oz and 10.2 fl oz). MBI 203 (1 lb), MBI 203 (2 lb), and MBI 203 (1 lb) plus Radiant (5 fl oz) were applied on (12, 26 Jul and 2, 9, 16, 23 Aug). Lannate plus Pounce was applied on (12, 19 Jul and 2, 9, 23 Aug). An IPM rotation of Nutricop 20/Avaunt/Coragen/Radiant/Agrimek were foliar applied on (12, 26 Jul and 2, 9 16 Aug). All applications were made at twilight. A tractor-mounted boom sprayer with 6 nozzles per row incorporated D-3 orifice disks, #25 cores, and 50 mesh screens. Operating pressure was 125 psi delivering 100 gpa. All spray treatments received a non-ionic surfactant Dyne-amic at 0.25% vol/vol. On 28-29 Aug, 200 mature-green to ripe fruit were harvested from the center row of each replicate (800 per treatment) and examined for TFW internal damage and BAW external damage. Data were analyzed using ANOVA. Differences among means were determined using Fisher’s Protected LSD Test (P<0.05 level,).