biocontrol of moss with sodium bicarbonate
TRANSCRIPT
University of Massachusetts AmherstScholarWorks@UMass AmherstNorth American Cranberry Researcher andExtension Workers Conference NACREW 2017
Aug 30th, 11:00 AM - 11:15 AM
Biocontrol of Moss with Sodium BicarbonateJocelyn MoreauFruit d'Or, Quebec CA, [email protected]
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Recommended CitationMoreau, Jocelyn, "Biocontrol of Moss with Sodium Bicarbonate" (2017). North American Cranberry Researcher and Extension WorkersConference. 18.https://scholarworks.umass.edu/nacrew/2017/papers/18
ORGANIC CONTROL OF MOSS WITH SODIUM BICARBONATE
NACREW 2017, PLYMOUTH, MASS
AUGUST 2017
0
JOCELYNE MOREAU, AGR.PROJECT MANAGER
BERRY SUPPLY
PRESENTATION PLAN
❖Objectives
❖Botanical info
❖Treatments year 1 and 2
❖Results
❖Conclusion
1
Objectives
Find a biopesticide affordable and efficient for the control of mosses in
cranberry bogs
What was investigated
Do we apply solid or liquid treatment ?
Same effects on different’s species ?
Persistant effet ?
What is the effect on soil pH ?
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Botany
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Sphagnum sp.
Sphagnum magellanicum
Hypnum cupressiforme(cypress moss)
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Polytricum
formosum
(haircap moss)
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Treatments – YEAR 1
A B CHaircap moss Cypres moss Cypres moss
Liquid* – May 18th Solid – June 1st Solid – June 16th
T1 - powder (60g/ft2)
T2 – 7.5g / ft² T1 – 7g / ft² T1 – 7g / ft²
T3 – 15g / ft² T2 – 15g / ft² T2 – 15g / ft²
T4 – 30g / ft² T3 – 30g / ft² T3 – 30g / ft²
T5 – 40g / ft² T4 – 40g / ft² T4 – 40g / ft²
*500 ml / ft²
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RESULTS – Few pictures
BEFORE – YEAR 1
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15 DAYS AFTER - POWDER TREATMENT CYPRESS MOSS
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1 year later……
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RESULTS - YEAR 1
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0
20
40
60
80
100
120
T1 (powd) T2 (15g/li) T3 (30 g/li) T4 (60 g/li) T5 (80 g/li)
Mo
rta
lity
(%
)
Mortality rate (%) over time - Polytric (liquid treatment)
48 hres 15 days 11 weeks 18 weeks
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0
20
40
60
80
100
120
T1 (7g/ft²) T2 (15g/ft²) T3 (30g/ft²) T4 (40g/ft²)
Mo
rta
lity
(%
)
Mortality rate (%) over time - 1st test Cypres moss (powder)
48 hres* 15 days 8 weeks 14 weeks
13
0
20
40
60
80
100
120
T1 (7g/ft²) T2 (15g/ft²) T3 (30g/ft²) T4 (40g/ft²)
Mo
rta
lity
(%
)
Mortality rate (%) over time - 2nd test Cypres moss (powder)
28 hres 15 days 7 weeks 14 weeks
SOIL PH INFLUENCE – YEAR 1
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Application Soufre4
4,5
5
5,5
6
6,5
7
June 03 July 07 August 03 Sept 21
pH
Soil pH variation over time in relation with treatment’s concentration1st test (liquid)
powder-60g
30 g / lit
80 g / lit
Control powder-
60gControl 30 g / lit
Control 80 g / lit
sulfur
Treatments – YEAR 2
A 60 PSI 2,8 MPH 182 Gal/ac TJ XR 11015
B 50 PSI 2,2 MPH 220 Gal/ac TJ XR 11015
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A BHaircap moss Haircap moss
Liquid – June 7th (1 shot) Liquid – June 7th (4 to 8 shots)
T1 – 30 g/ lit (0,5 g/ft²) T1 – 30 g / lit (2,3 g/ft²)
T2 – 40 g/ lit (0,6 g/ft²) T2 – 40 g / lit (3 g/ft²)
T3 – 60 g/ lit (0,95 g/ft²) T3 – 60 g / lit (4,6 g/ft²)
T4 – 80 g/ lit (1,26 g/ft²) T4 – 80g / lit (12 g/ft²)
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SOIL PH INFLUENCE – YEAR 2
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3,80
4,00
4,20
4,40
4,60
4,80
5,00
June 6 June 13 July 4 August 1st
pH
Soil pH variation over time in relation with treatment's concentration
30 g / lit
60 g / litre
80 g / lit
Control 30
g / lit
Control 60
g / litre
Control 80
g / lit
CONCLUSION
• Very promising ☺
• Best dose : 12 to 15 g / ft² but …..
• Effect on soil pH: 2 month approx
• Liquid treatment better results
• Durable effect…..?
• accepted, but NOT registered in Canada yet !
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THANKS to Ferme d’Or and Atocas Blandford
QUESTIONS ?
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