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Weed Control And Watermelon Tolerance To SANDEA. Herbicides Labeled for Watermelons 1.Gramoxone,Boa (paraquat)…..…Preplant, Row Middles 2.Roundup, others.

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Presentation on theme: "Weed Control And Watermelon Tolerance To SANDEA. Herbicides Labeled for Watermelons 1.Gramoxone,Boa (paraquat)…..…Preplant, Row Middles 2.Roundup, others."— Presentation transcript:

1 Weed Control And Watermelon Tolerance To SANDEA

2 Herbicides Labeled for Watermelons 1.Gramoxone,Boa (paraquat)…..…Preplant, Row Middles 2.Roundup, others (glyphosphate)…Preplant 3.Prefar (bensulide)……………PPI or PRE 4.Curbit (ethalfluralin)…………….…PRE 5.Command (clomazone)……………PRE 6.Alanap (napthalam)………PRE or POST 7.Poast (sethoxydim)…………………POST 8.Treflan HFP (trifluralin)…..Row Middles

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6 Watermelon Trials, Cordele, GA Vidalia, GA Attapulgus, GA

7 Non-treated Control Sandea (0.5 oz/A) PRE

8 Non-treated Control Sandea (0.5 oz/A) POST 2-leaf watermelon 2” Palmer Amaranth

9 non-treatedSandea 2/3 oz + Curbit 1.5 pt

10 Crop Injury??

11 Herbicide Injury Ratings Sandea… Pre % Injury April 23 April 27 May 9 May 23 June oz 0.75 oz 1.0 oz Check

12 Herbicide Injury Ratings Sandea… Post (1-2 Leaves) % Injury May 9 May 23 May 29 June oz 0.75 oz 1.0 oz Check

13 Herbicide Injury Ratings Sandea… Post (12-15” Runners) % Injury May 23 May 29 June oz 0.75 oz 1.0 oz Check

14 Sandea 0.75 oz Post

15 Untreated Sandea 0.75 oz/acre Post

16 Sandea 0.75 oz/acre Post Sandea 0.75 oz/acre Post

17 Sandea POST to Watermelon with 12” Runner

18 Sandea 0.75 oz/acre Late Post

19 Nontreated Sandea (0.5 oz/acre) Watermelon farm in Crisp County, May Treatment at 1-leaf. Pictures to scale.

20 Sandea (0.5 oz/A) PRE Sandea (0.5 oz/A) POST 2-leaf watermelon

21 Effects on Yield

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23 Yield Data Sandea… 0.5 Oz/acre lbs /plot Pre 1-2 leaf 12" runnersCheck July 9 July 16 July 23 Total

24 Yield Data Sandea… 0.75 Oz/acre lbs /plot Pre 1-2 leaf 12" runnersCheck July 9 July 16 July 23 Total

25 Yield Data Sandea… 1.0 Oz/acre lbs /plot Pre 1-2 leaf 12" runnersCheck July 9 July 16 July 23 Total

26 Melon Size Sandea…0.5 Oz/acre lbs /plot Pre1-2 Leaf12" RunnersCheck < 20 lb lb

27 Melon Size Sandea…0.75 Oz/acre lbs /plot Pre1-2 Leaf12" RunnersCheck < 20 lb lb

28 Melon Size Sandea…1.0 Oz/acre lbs /plot Pre1-2 Leaf12" RunnersCheck < 20 lb lb

29 Conclusions 1.Curbit is a useful tool in the control of nutsedge and pigweeds.

30 Conclusions 1.Curbit is a useful tool in the control of nutsedge and pigweeds. 2.Do not allow Sandea to contact foliage.

31 Conclusions 1.Curbit is a useful tool in the control of nutsedge and pigweeds. 2.Do not allow Sandea to contact foliage. 3.Sandea PRE may slightly delay maturity.

32 Conclusions 1.Curbit is a useful tool in the control of nutsedge and pigweeds. 2.Do not allow Sandea to contact foliage. 3.Sandea PRE may slightly delay maturity. 4.Need label for Sandea PRE and row middles.

33 Conclusions 1.Curbit is a useful tool in the control of nutsedge and pigweeds. 2.Do not allow Sandea to contact foliage. 3.Sandea PRE may slightly delay maturity. 4.Need label for Sandea PRE and row middles. 5.Need additional research in plasticulture systems.


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