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Cucurbit Crops – Insects 136 Midwest Veg Guide 2022 per season for all cucurbits. REI: 12-hour. PHI: 0-day. IRAC 03A. RUP. Platinum 2SC (thiamethoxam) Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash, Watermelon | 5-11 fl. oz. per acre. Use 2SC formulations as a soil treatment at 5-11 fl. oz. per acre and do not exceed 11 fl. oz. per acre per season. Use 75SG formulations as a soil treatment at 1.66-3.67 oz. per acre and do not exceed 3.67 oz. per acre per season. Should never be used in combination with insecticide seed treatments. REI: 12-hour. PHI: 30-day. IRAC 04A. Scorpion 35SL (3.24) (dinotefuran) Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash, Watermelon | Soil application: Use Scorpion 35SL at 9.0- 10.5 oz. per acre, or Venom 70SG at 5.0-7.5 oz. per acre. Foliar application: Use Scorpion 35SL at 2.0-7.0 fl. oz. per acre, or Venom 70SG at 1-4 oz. per acre. See pollination precautions. REI: 12-hour. PHI: 21-day for soil application, 1-day for foliar application. IRAC 04A. Sivanto 200 (1.67SL) (flupyradifurone) Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash, Watermelon | 21-28 fl. oz. per acre soil application, or 7-12 fl. oz. per acre foliar application. Should never be used in combination with insecticide seed treatments. REI: 4-hour. PHI: 21-day for soil application, or 1-day for foliar application. IRAC 04D. Venom 70SG (dinotefuran) Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash, Watermelon | Soil application: 5-7.5 oz. per acre and do not exceed 12 oz. per acre per season. Foliar application: 1-4 oz. per acre and do not exceed 6 oz. per acre per season. See pollination precautions. REI: 12-hour. PHI: 21-day for soil application, 1-day for foliar application. IRAC 04A. Verimark (1.67SC) (cyantraniliprole) Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash, Watermelon | 10.0-13.5 fl. oz. per acre. Apply via drip irrigation or soil injection. Do not exceed 30.65 fl. oz. per acre per season, or 2 applications per season. REI: 4-hour. PHI: 1-day. IRAC 28. Warrior II (2.08CS) (lambda-cyhalothrin) Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash, Watermelon | 1.28-1.92 fl. oz. per acre. Do not exceed 11.5 fl. oz. per acre per season. REI: 24-hour. PHI: 1-day. IRAC 03A. RUP. Cucumber Beetles Cucumber beetles transfer bacterial wilt to plants, which cannot be saved once infected. Seed treatments for direct- seeded crops are effective. At-plant soil drenches used alone at the lowest recommended rate, with non-treated seed, offer similar protection to treated seed for beetle control. Due to increased residues in nectar and pollen, in-furrow applications should be considered last. Non-systemic foliar insecticides can be used during bloom in the evening when flowers are closed and bees are not actively foraging, which minimizes the risk to pollinators. Thresholds range from 0.5 to 1 beetle per seedling, and 1 to 5 beetles per plant for plants after 4 leaf stage. The threshold for cantaloupes/muskmelons and cucumber is lower (0.5 per seedling and 1 per plant) because these crops are susceptible to bacterial wilt, which is vectored by striped cucumber beetles. Pumpkin, squash, and watermelon have higher thresholds (1 per seedling and 5 per plant) because they are not as susceptible to the disease. To detect beetle populations at an average of 0.5 beetles per plant (lowest threshold) examine 48 plants throughout the field. If operating under the higher threshold of 5 beetles per plant, examine 8 plants throughout the field. Weekly scouting is sufficient to track beetle populations and inform spray decisions. Economic damage can occur on fruit from feeding by both adult beetles and larvae. Beetles found in flowers do not pose a risk to the plant but as flowering decreases, rind feeding may increase and thresholds may need to be lowered. Non-Pesticide Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash, Watermelon | Yellow sticky traps are attractive to cucumber beetles and can detect mass emergence during periods of heavy beetle activity. Pesticide Admire Pro (4.6SC) (imidacloprid) Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash, Watermelon | 7.0-10.5 fl. oz. per acre. See label for various soil application methods. Do not exceed 10.5 fl. oz. per acre per season. Should never be used in combination with insecticide seed treatments. REI: 12-hour. PHI: 21-day. IRAC 04A. Asana XL (0.66EC) (esfenvalerate) Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash, Watermelon | 5.8-9.6 fl. oz. per acre. Do not exceed 48 fl. oz. per acre per season. REI: 12-hour. PHI: 3-day. IRAC 03A. RUP. Assail 30SG (acetamiprid) Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash, Watermelon | 2.5-5.3 oz. per acre. Use 30SG formulations at 2.5-5.3 oz. per acre and do not exceed 26.5 oz. per acre per season. Use 70WP formulations at 1.1-2.3 oz. per acre and do not exceed 11.5 oz. per acre per season. Allow 5 days between applications. REI: 12-hour. PHI: 0-day. IRAC 04A. Azera (C) (azadirachtin, pyrethrins) Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash, Watermelon | 48 fl. oz. per acre. Do not exceed 10 applications per season. Do not reapply within 3 days except