Update on Dominus®, Vapam®, and Bed Fumigation Trials Volume 5 Issue 10 Tom Walters, Walters AgResearch Email: firstname.lastname@example.org 2A) 2014 Dominus® and Vapam® trial Treatments applied Sept 2014 Field treatments were: 1) Telone® C-35, 35 GPA, Deep-shanked (16″) with Trident application rig; 2) Vapam®, 75 GPA, applied at 5/11″ with Maberry Packing rig (Fig. 1); and 3) Dominus®, 40 GPA, applied at 5/11″ with Maberry Packing rig Treatments were applied as 0.5 A blocks. Treatments were not replicated, but measurements made in 4-8 locations in each plot. ‘Meeker’ raspberries were planted March 2015. In 2015, we saw that P. penetrans numbers were lower in Dominus® and Vapam®-treated plots, and plants grew better there. First harvest was in summer 2016. We recorded three harvests from this field; No substantial differences among treatments were noted Plant growth 2016: Number of primocanes per hill was comparable among treatments; canes in C-35 treated plots were slightly longer (Fig. 2). Bottom line: Grower-applied Dominus® and Vapam® got plants off to at least as good a start as Telone® C-35 in a field with high P. penetrans numbers. Figure 2. Primocanes per hill and height from plots treated with Dominus®, Vapam®, and Telone® C-35 2B) 2015 Bed Fume trial, treatments applied October 2015 Treatments applied Oct 2015 using Trident’s bed fume rig (injection points 8 and 15″ depth) (Fig. 3). Treatments were: 1) Telone® C-35, 16.4 GPA (49 GPA in bed); 2) Dominus®, 18 GPA (56 GPA in bed); and 3) Dominus® Plus (Dominus:pic, 75:25) 26 GPA, (78 GPA in bed) Treatments applied to one (Dominus®) or two (C-35, Dominus® Plus) beds. Treatments were not replicated, but measurements made in 5 locations in each bed. ‘Meeker’ raspberries were planted March 2016 Spring 2016 – no nematodes detected in most plots. Summer plant growth: Dominus and Dominus Plus at least as many canes, canes at least as long as C-35 (Fig. 6). Fall nematode numbers coming… Bottom line: so far bed fume treatments look similar, Dominus® and Dominus® Plus seem comparable to C-35. Figure 3a. Trident bed fumigation rig Figure 3b. Trident bed fumigation treated plots Figure 4. Primocanes per hill and height for bed fumigated plots.