| Trial Number | Trial Year | Trial State | Institution | Coordinator | Researcher | Protocol | Report | Data To MFG | Performance Results and Comments |
| IS00376-21-CA01 | 2021 | CA | University of California Riverside | Alice Axtell | Houston Wilson |
IS00376-21
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Yes
| |
Surround WP (kaolin clay) at 50 and 25 lbs/100gal was the only treatment to significantly reduce Virginia creeper leafhoppers infesting grape following 3 foliar applications at 7-10 day RTI. Other treatments included: Admire Pro (imidacloprid) at 1.4 fl oz/A, Pro-365 (chitosan) at 30 ml/gallon, Pyganic EC 5.0 II (pyrethrins) at 15 fl oz/A, Aza-Direct (azadirachtin) at 2 pts/A, Grandevo (chromobacterium subtsugae) at 3 lbs/A, BoteGHA ES (Beauveria bassiana) at 1 quart/A, PureCrop1 (corn & soybean oil) at 1.5% v/v, Venerate XC (Burkholderia spp. strain A396) at 4 qts/A, M-Pede (potassium salts of fatty acids) at 2.5 gal/100 gal, Prev-AM (sodium tetraborohydrate decahydrate) at 50 fl oz/100 gal, and XPS-203 (fatty acids) at 9.36 fl oz/1 gal. All treatment except Grandevo significantly reduced populations of Western grape leafhopper, while Surround WP and Prev-Am were the only treatments that significantly reduced populations of variegated leafhopper.
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| IS00376-23-CA26 | 2023 | CA | University of California Riverside | Alice Axtell | Houston Wilson |
IS00376-23
|
Yes
| 10/2024 |
The following registered products were tested against an infestation of Virginia creeper leafhoppers (VCLH) and Western grape leafhoppers (WGLH) on grape: Pyganic (pyrethrins; commercial standard) at 15 fl oz/A, Aza-Direct + M-Pede (azadirachtin + insecticidal soap) at 16 fl oz/A and 2.5% v/v respectively, BoteGHA ES (Beauveria bassiana) at 32 fl oz/A, Surround WP (kaolin clay) at 0.5 lbs/gal, PureCrop1 (corn and soybean oil) at 1.5% v/v, Pure Spray Green (mineral oil) at 2% v/v, Grandevo (Chromobacterium subtsugae) at 48 fl oz/A, Venerate (Burkholderia spp. strain A396) at 28 fl oz/A). All treatments were applied twice every 7 days. Results on VCLH: while the commercial standard provided 90% of pest reduction, only Grandevo and Venerate XC delivered some suppression (42% and 20% respectively). Results on WGLH: while the commercial standard provided 95% control, only Aza-Direct+M-pede, Purecrop1, and Grandevo provided some suppression at 50%, 33% and 47% respectively.
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