Dry Beans Weed Management Research

Transcription

1 Dry Beans Weed Management Research Sandea (POST) Sandea (PPI) Frontier + Pursuit (PPI) Dr. Peter H. Sikkema Field Crop Weed Management Sandea + Basagran + Reflex (POST) Treflan + Pursuit (PPI)

2 Crop Tolerance in Dry Beans Question # 1 1. Is it safe to apply a tankmix of Prowl + Pursuit PPI in white and adzuki beans?

3 Prowl + Pursuit (PPI) White Beans Crop Injury Sikkema, UG

4 Prowl + Pursuit (PPI) White Beans Yield Sikkema, UG

5 Prowl + Pursuit (PPI) Adzuki Beans Crop Injury Sikkema, UG

6 Prowl + Pursuit (PPI) Adzuki Beans Yield Sikkema, UG

7 Prowl + Pursuit (PPI) Summary There was a trend to increased injury with increasing rates of Pursuit Greater in white bean than adzuki bean The addition of Prowl did not increase injury substantially Yield White bean yield decreased as Pursuit rate increased Addition of Prowl did not accentuate yield loss No affect of Pursuit rate or Prowl tankmix on adzuki bean yield

8 Prowl + Pursuit (PPI) Question # 1 1. Is it safe to apply a tankmix of Prowl + Pursuit PPI in white and adzuki beans? 2. Yes a. The addition of Prowl to Pursuit did not result in higher levels of crop injury or increased yield loss in both white and adzuki beans b. The rate of Pursuit MUST BE ADJUSTED depending on market class 3. A registration of Prowl + Pursuit on dry common beans should be pursued Adjust the rate of Pursuit depending on market class

9 Crop Tolerance in Dry Beans Question # 2 1. What is the affect of Pursuit application timing (PPI, PRE or POST) on the tolerance of white and kidney beans?

10 Pursuit (PPI, PRE, POST) White and Kidney Beans Crop Injury Sikkema, UG

11 Pursuit (PPI, PRE, POST) White and Kidney Beans Crop Injury Sikkema, UG

12 Pursuit (PPI, PRE, POST) White and Kidney Beans Dry Weight Sikkema, UG

13 Pursuit (PPI, PRE, POST) White and Kidney Beans Height Sikkema, UG

14 Pursuit (PPI, PRE, POST) White and Kidney Beans Yield Sikkema, UG

15 Pursuit (PPI, PRE, POST) White and Kidney Beans Summary Crop Injury Initially there was greater injury with the POST By 28 DAE/DAA there was the least injury with the POST Kidney bean No effect on dry weight, height or yield White bean No effect on height Dry weight and yield decreased most with PPI > PRE > POST

16 Pursuit (PPI, PRE, POST) White and Kidney Beans Question # 2 1. What is the affect of Pursuit application timing (PPI, PRE or POST) on the tolerance of white and kidney beans? 2. There is little to no affect of application timing on the tolerance of kidney bean 3. White tolerance is the least to the PPI application

17 Crop Tolerance in Dry Beans Question # 3 1. What is the tolerance of black, white, cranberry and kidney beans to a tankmix of Authority + Pursuit applied PRE?

18 Authority + Pursuit (PRE) Crop Injury Mean of black, white, cranberry and kidney Sikkema, UG

19 Authority + Pursuit (PRE) Yield Mean of black, white, cranberry and kidney Sikkema, UG

20 Authority + Pursuit (PRE) Summary Up to 13% injury was observed with the high rate of Authority Injury was not accentuated with the Pursuit tankmix Greater injury in white > black = cranberry > kidney Decrease in dry weight, height and yield Greater decrease with increasing rate Greater decrease with Pursuit tankmix?

21 Authority + Pursuit (PRE) Question # 3 1. What is the tolerance of black, white, cranberry and kidney beans to a tankmix of Authority + Pursuit applied PRE? 2. Marginal

22 Crop Tolerance in Dry Beans Question # 4 1. What is the tolerance of mung bean to Basagran, Reflex, Basagran + Reflex and Sandea applied POST?

23 Mung Bean Postemergence Herbicides Crop Injury (%) 7 DAA

24 Mung Bean Postemergence Herbicides Dry Weight (% of control) 14 DAA

25 Mung Bean Postemergence Herbicides Yield (% of control)

26 Mung Bean Postemergence Herbicides Question # 4 1. What is the tolerance of mung bean to Basagran, Reflex, Basagran + Reflex and Sandea applied POST? 2. Basagran, Basagran + Reflex and Sandea cause unacceptable injury in mung bean 3. There is the potential for Reflex as a POST broadleaf herbicide in mung bean

27 Weed Management in Dry Beans Question # 1 1. What are the differences among the 5 soil applied grass herbicides in respect to weed control?

28 Grass Herbicides Green Foxtail Control (%) Weed Control (%) Sikkema, UG

29 Grass Herbicides Broadleaf Weed Control (%) Weed Control (%) Sikkema, UG

30 Grass Herbicides (PPI) Summary 1. Which soil applied grass herbicide should I use? Weed Lamb s-quarters Wild mustard Redroot pigweed Common ragweed Recommended Herbicide(s) Treflan, Prowl, Eptam Frontier, Dual, Eptam Treflan, Frontier, Dual, Prowl Eptam, Frontier

31 Weed Management in Dry Beans Question # 2 1. I applied Prowl PPI for annual grass control in my beans. Which POST broadleaf herbicide should I use?

32 Prowl (PPI); POST Broadleaf Lamb s-quarters Control (%)

33 Prowl (PPI); POST Broadleaf Wild Mustard Control (%)

34 Prowl (PPI); POST Broadleaf Redroot Pigweed Control (%)

35 Prowl (PPI); POST Broadleaf Common Ragweed Control (%)

36 Prowl (PPI); POST Broadleaf Green Smartweed Control (%)

37 Prowl (PPI); POST Broadleaf Flower-of-an-hour Control (%)

38 Prowl (PPI); POST Broadleaf Summary 1. I applied Prowl PPI for annual grass control in my beans. Which POST broadleaf herbicide should I use? 2. It depends on the species

39 Prowl (PPI); POST Broadleaf Summary 1. I applied Prowl PPI for annual grass control in my beans. Which POST broadleaf herbicide should I use? 2. It depends on the species Weed Lamb s-quarters Wild mustard Redroot pigweed Common ragweed Green smartweed Flower-of-an-hour Recommended Herbicide(s) Basagran, Basagran + Reflex Basagran, Reflex, B + R, Sandea Reflex Reflex, Basagran + Reflex, Sandea Basagran, Basagran + Reflex Basagran, Sandea

40 Weed Management in Dry Beans Question # 3 2. What is the effect of application timing (PPI, PRE or POST) on herbicide efficacy with Sandea?

41 Sandea Application Timing Weed control (%) Sikkema, UG

42 Sandea Application Timing Summary 2. When should I apply Sandea in edible beans? Weed Wild mustard Lamb s-quarters Redroot pigweed Green smartweed Recommended Timing PPI = PRE = POST PPI = PRE > POST PPI = PRE > POST PPI = PRE > POST

43 Weed Management in Dry Beans Question # 4 3. Is there a benefit in respect to weed control to adding Treflan or Pursuit to Sandea applied PPI?

44 Sandea Tankmixes Weed control (%)

45 Sandea Tankmixes Summary 3. Is there a benefit in respect to weed control to adding Treflan or Pursuit to Sandea applied PPI? a. No improvement in the control of lamb s-quarters, wild mustard and redroot pigweed b. A dramatic improvement in green foxtail control

46 PPI Herbicides in Dry Beans market class specific registrations 59 market class specific registrations

47 PRE Herbicides in Dry Beans market class specific registrations 39 market class specific registrations

48 POST Herbicides in Dry Beans market class specific registrations 81 market class specific registrations

49 Weed Management in Dry Beans Summary 1. During the past 12 years there have been the following number of new market class specific registrations Application Timing Number of New Registrations PPI 40 PRE 32 POST 51 Total There are numerous new registrations for Ontario dry bean producers 3. This has eliminated many potential non-tariff trade barriers

50 Weed Management in Dry Beans Current & Future Research Crop Tolerance 1. Tolerance of white and kidney beans to Pursuit applied PPI, PRE or POST 2. Tolerance of adzuki, black, kidney and white beans to Sandea applied at various times POST 3. Tolerance of mung bean to POST broadleaf herbicides 4. Tolerance of adzuki bean to PRE herbicides 5. Tolerance of dry common beans to Integrity applied PRE

51 Weed Management in Dry Beans Current & Future Research Weed Management 1. Weed control with Sandea applied PPI, PRE and POST 2. Weed control with Sandea tankmixes applied PPI 3. Weed control in kidney beans with Lorox tankmixes applied PRE 4. Weed desiccation.

52 Dry Beans Weed Management Research Sandea (POST) Sandea (PPI) Frontier + Pursuit (PPI) Thank you Sandea + Basagran + Reflex (POST) Treflan + Pursuit (PPI)