Installation of the mainlines for SSCDS and standard EC cooling systems began in Sunrise block 2D on Tuesday, June 27.
Application of Altacor – June 21, 2012
The SSCDS Insect & Disease Management block (Sunrise 2B) was treated with Altacor on Thursday, June 21 (864 CM DD from January 1) with both SSCDS and Airblast sprayer.
Application of Microthiol + TopGuard – June 14, 2012
The SSCDS Insect & Disease Management block (Sunrise 2B) was treated with a third application of Microthiol + TopGuard on Thursday May June 14 with both the SSCDS and Airblast sprayer.
Application of Altacor – May 30, 2012
The SSCDS Insect & Disease Management block (Sunrise 2B) was treated with Altacor on Wednesday, May 30 (528 CM DD from January 1) with both SSCDS and Airblast sprayer.
A method for sampling leaf area was tested at Sunrise Orchard on May 23 in the Horticulture study plot (Sunrise 2D). The two middle trees from the middle Fuji row in each replicate were sampled by picking 5 shoot and 5 spur leaves from 6 zones on each of the the two trees. Each tree was divided into zones of approximately 1 meter in height on both the East and West side of the tree (6 total zones: Top West, Top East, Middle West, Middle East, Bottom West, and Bottom East). Shoot and spur leaves were combined and collected in paper bags, transferred back to the lab and measured using a Licor leaf area meter. The leaves from each zone were run across the leaf are meter and the average area per leaf calculated (Total Area/# of Leaves).
The chart below shows the average leaf area per zone.
Leaf area measurements will be used later in the season in combination with applications of Tartrazine dye to help assess coverage of the SSCDS in comparison to an Airblast sprayer.
Application of Microthiol + TopGuard – May 14, 2012
The SSCDS Insect & Disease Management block (Sunrise 2B) was treated with a second application of Microthiol + TopGuard on Wednesday May 23 (+13d) with both the SSCDS and Airblast sprayer.
The SSCDS test plots at the Sunrise Research Orchard located outside of Wenatchee, WA are one acre in size and divided into three treatments: 1. SSCDS System; 2. Airblast Comparison; and 3. Untreated Control. The treatment plots are replicated four times – each replicate is 0.03 acres in size. Each of the treatment plots are separated by four buffer rows.
The water is carried on a 1″ poly line attached to the 6′ trellis wire. There is approximately 300′ of 1″ poly in each plot. The 1″ line is looped from row to row so that the input and output lines can both be attached to the SSCDS spray Rig for pumping and recapturing pre-mixed spray materials.
There are 104 emitters in each SSCDS replicate. Emitters are located on 48″ risers (10′ from the ground), 24″ risers (8′ from the ground), 0″ drops (6′ from the ground), and 24″ drops (4′ from the ground). Each emitter of the same height is separated 6′ horizontally.
The emitters are from Jain irrigation Modular Group 7000 Series with a Violet Nozzle and a Yellow Flat Spreader. Each emitter is accompanied by a pressure compensating device (check-valve) that opens when pressure reaches approximately 20 psi. Each emitter emits 9.2 gallons/hour at 30 psi.