ontario sugar beet growers - Atrium - University of Guelph

More documents

Recommendations

Info

CROP: Seed corn cv. INB206 PEST: Common Rust, Puccinia sorghi Schwein European corn borer, Osirinia nubilalis (L.) NAME AND AGENCY: PITBLADO, R E Ridgetown College, University of Guelph, Ridgetown, Ontario NOP 2C0 Tel: (5 19)674-1605 Fax: (5 l9)674-l6OO E-mail: rpitblad@ridgetownc.uoguelph.ca TITLE: EVALUATION OF MATADOR 120EC AND QUADRIS 250EC FOR THE CONTROL OF EUROPEAN CORN BORER AND RUST IN SEED CORN - Location 1 - 2005 MATERIALS: MATADOR 1 20EC (lambda-cyhalothrin), QUADRIS 2 5OEC (azoxy strobin) METHODS: Seed corn was planted on June 7,2005, in four- row plots spaced 0.75 m apart. Plots were 7 m in length, replicated four times in a randomized complete block design. Spray applications were made on the middle two rows using a specialized small plot research CO, sprayer with a three-nozzled hand-held boom, applying 250 Lha of spray mixture. Spray applications were made on July 2 1,29, August 6 and 15. Assessments were conducted by rating on a scale of 0-10 with 0- indicating no control and 10 indicating excellent control, the amount of foliar rust pustules observed on a single assessment row on August 13 and 18 and counting the number of infested ears with corn borer on August 3 1, examining 40 plants per plot. Results were analyzed using the Duncan's Multiple Range Test (P50.05). RESULTS: Data are presented in Table 1 CONCLUSIONS: The fungcide QUADRIS 250EC effectively controlled a significant infection of corn leaf rust whether applied alone or tank mixed with the insecticide MATADOR 120EC. The insecticide did not control the fungal disease leaf rust. There was not sufficient European corn borers at this location to differentiate amongst the treatments.
Table 1. Common leaf rust ratings in seed corn - Location 1 Leaf Rust Treatments Rate Number of Ratings (0-10) 'I Product Applications /ha Aug. 13 Aug 18 QUADRIS 250EC 452 rnl 2 10.0 a* MATADOR 120EC 83 ml 3 6.8 b MATADOR 120EC+ 83 ml 3 10.0 a QUADRIS 250EC 452 ml 2 CONTROL 6.5 b ANOVA Ps0.05 s s Coefficient of Variation (%) 8.6 6.8 *These values are the means of three replications. Numbers within a column followed by the same letter are not significantly different according to Duncan's Multiple Range Test (Ps0.05) 'I Leaf Rust Ratings (0-10): 0- no control considerable numbers of leaf rust pustules, 10- excellent control foliage green with no rust pustules.
Page 1 and 2: Submitted to the ONTARIO SUGAR BEET
Page 3 and 4: SPECIAL ACKNOWLDEGMENTS I wish to p
Page 5 and 6: REPORTS IRRIGATION STRATEGIES FOR S
Page 7 and 8: Research Results and Milestone Stat
Page 9 and 10: applications, severely costing the
Page 11 and 12: Table 1. Foliar disease control rat
Page 13 and 14: CROP: Sugar beet (Beta vulgaris L.)
Page 15 and 16: Table la. Cercospora Foliar disease
Page 17: BeetCast Evaluation for the Control
Page 23 and 24: CROP: PEST: Sugar beet (Beta vulgar
Page 25 and 26: CONTROL OF RHlZOCTONlA CROWN ROT IN
Page 27 and 28: Table 1. Effect of fungicides appli
Page 29 and 30: Table 1. Foliar insect damage ratin
Page 33 and 34: effective in combating the crown ro
Page 35: Table 1. Field assessments of sugar
Page 39 and 40: IRRIGATION STRATEGIES FOR SUGAR BEE
Page 41 and 42: Fig. 1. Irrigation test sites, Mich
Page 43: Fig. 5. Commercial Pivot Irrigation
Page 50 and 51: Irr 1-7: dates where grower applied
Page 52 and 53: Fig. 8b. Location A Pivot Irrigatio
Page 54 and 55: COMMENTS: Location A CONTROL lOcm T
Page 56 and 57: Fig. 9a Location B Control 10cm Dep
Page 58 and 59: 1Ocm Depth Hand lrrigated (Reif) -
Page 60 and 61: SUGAR BEET MELD AND SUGAR CONTENT O
Page 62 and 63: COMMENTS The reference ETo at each
Page 64 and 65: graphs indicated that too much wate
Page 66 and 67: 1. PRODUCTION BENEFITS OF IRRIGATIO
Page 68 and 69: of 10 (Fig. 6). Plant growth charac
Page 70 and 71: Table 1: Seed corn irrigation analy
Page 72 and 73: Fig. 8. Irrigation plot layout show
Page 74 and 75: Cob Length Irrigation significantly
Page 76 and 77: Seed Corn Yields Irrigation signifi
Page 78 and 79: BENEFITS OF IRRIGATING SEED CORN IN
Page 80 and 81: C-probe Scaled Frequency Unit V I +
Page 82 and 83: CONCLUSIONS: The initial intent was
Page 84 and 85: Fig. >rip tape along side of seed c
Page 86 and 87:
Table 8b: Drip Irrigation - Seed co
Page 88 and 89:
Fig. 18. Drip Irrigation - Non-irri
Page 90 and 91:
Fig. 20. Rainfall accumulations in
Page 92 and 93:
Fig. 22. Soil moisture profile in f
show all

ontario sugar beet growers - Atrium - University of Guelph

Create successful ePaper yourself

Delete template?

Save as template?