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Name: Herbicide Callisto (mesotrione)

Material Type

herbicide

Transactions:

2002-05-11	Herbicide Application	Sprayed preemergence herbicide on all replications of treatments 1 and 2 (total area 30 acres) on the main site and the Nitrogen Rate Study (total area 1.1 acres); Dual II Magnum (S-metolachlor (+ safener)) was applied at 1.33 pts/A (a total of 5 gals of product was applied on 31.1 acres); Callisto (mesotrione)was applied at 6 oz/A (a total of 1.4 gals (180 ozs) of product was applied on 31.1 acres); Atrazine 4L (atrazine)was applied at l lb/A (a total of 7.5 gals of product was applied on 31.1 acres); Water was used as the carrier applied at 19 gals/A; Weather Conditions: Cloudy with air temperature ranging from 40-48 degrees F. Relative Humidity was 38%. Wind was out of the southeast at 0-5 MPH averaging 0 MPH; Time of application was between 10:00 a.m. and 2:30 p.m.
2003-06-06	Herbicide Application	Sprayed the Nitrogen Rate Studies (N-rate) both the irrigated and non-irrigated, in the LTER, preemergence to control annual grass and broadleaves weeds.Dual II Magnum (s-metolachlor (+ safener)) was applied at 1.33 pts/A (1.56 L/ha), Atrazine 4L was applied at 1 lbs/A (1.56 L/ha), and Callisto (mesotrione) was applied at 6 oz/A (0.4 L/ha). A total of 3 qt of Dual II Magnum, 4 qts of Atrazine, and 24 oz of Callisto were applied on the N-rate study area. Weather Conditions: Sunny with air temperature was 68 degrees F. Wind was out of the southwest at 0-5 mph averaging 2 mph. Time of application was between 3:30 p.m. and 5:00 p.m. Equipment Used: JD 5220 tractor traveling 5.5 mph (gear C1, 1700 rpm's) with a pull type Top Air sprayer equipped with a hydraulic centrifugal sprayer pump and a Raven 440 automatic carrier control unit. Turbo TeeJet 11003 nozzles were used, spaced 15 inches apart with a total boom length of 30 feet. 30 psi was used. Water applied at 20 gals/A, (187L/ha), was used as the carrier. Purpose of Application: Control of annual broadleaves and grass weeds. Sprayed preemergence.
2004-05-06	Herbicide Application	Sprayed the N-rate studies, irrigated and non-irrigated, ECB study, and the extra area east of the 2,4-D study and west of the LTER main drive. Purpose of Application: Control of annual broadleaves and grass weeds. Dual II Magnum (s-metolachlor (+ safener)) was applied at 1.33 pts/A, (1.56L/ha). Callisto (mesotrione) was applied at 6 oz/A (0.44L/ha), and Atrazine 4L (atrazine) was applied at 1 lbs/A (1.12 kg/ha). Weather Conditions: Mostly cloudy with air temperature 80 degrees F. Relative Humidity was 53%. Wind was out of the west at 0-6 mph's averaging 2 mph's. Time of application was between 3:00 p.m. and 4:00 p.m. Equipment Used: JD 5220 tractor traveling 4.0-5.0 mph (gear C1, 1400-1600 rpm) with a pull type Top Air sprayer equipped with a hydraulic centrifugal sprayer pump and a Raven 440 automatic carrier control unit. Turbo TeeJet 11003 nozzles were used, spaced 15 inches apart with a total boom length of 30 feet. 20-30 psi was used. Water applied at 20 gals/A, (187L/ha), was used as the carrier. Sprayed preemergence. Weeds prevalent: None.
2002-05-24	Herbicide Application	May 24, 2002 Dual II Magnum, Callisto, and Atazine was applied preemergence to the corn in the European Corn Borer Study and the second Nitrogen Rate Study. Purpose of application: Control of annual grass and broadleaf weeds. This application was a broadcast preemergence herbicide. Dual II Magnum (S-metolachlor (+ safener)) was applied at 1.33 pts/A, (1.56 L/ha), total amount of Dual II Magnum used 7 pts (3.32 L). Callisto (mesotrione) was applied at 6 oz/A, total amount of Callisto used 30 ozs (0.89 L). Atrazine 4L (atrazine) was applied at l lb/A, total amount of atrazine used: 5 qts (4.74 L). Total area covered: 3.1 acres (1.26 hectares). Weather Conditions: Air temperature: 62 degrees F. Wind was out of the northwest at 0-8 mph, with an average of 3 mph. Relative Humidity: 52%. Time of application: 12:00 noon - 1:00 p.m. Equipment Used: JD 5220 tractor traveling 4.5 mph, gear B3 2000 rpm, with a pull type Top Air sprayer equipped with a PTO driven centrifugal sprayer pump and a Raven 440 automatic carrier control unit. Nozzles used: Turbo TeeJet 11003 spaced 15 inches apart with a total boom length of 30 feet. Application pressure: 12-14 psi. Carrier used: Water applied at 20 gals/A (187L/ha).

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