Herbicide Use Survey – Presentation February 2018
HerbicideUseSurvey–PresentationFebruary2018
Objectives
• Weed conditions and resistance;
• Important factors in weed management decisions;
• Weeds targeted and herbicide groups applied;
• Practices used to manage and an evaluation of these practices.
Method• Fieldwork – November 2017
• 346 responses from the West
2
Respondent Location
26%
50%
24%
Alberta Saskatchewan Manitoba
• 50%ofrespondentscamefromSaskatchewan
• EqualpercentagesfromAlbertaandManitoba
3
Soil Zone
5%
8%
20%
28%
39%
Dark Gray
Gray
Brown
Dark Brown
Black
• Theblacksoilzonepredominatesat(39%)
4
Primary Occupation?
• 65%ofoursamplearefarmowners
5
1%
2%
2%
4%
10%
14%
65%
Farm employee
Researcher
Crop consultant
Farm manager
Agronomist
Partner in farm operation
Farm owner
Seeded Acreage
4%
10%
5%
10%
23%
32%
17%
None
10,000 or more
7,500 – 9,999
5,000 – 7,499
2,500 – 4,999
1,000 – 2,499
Less than 1,000
EstimatedAverage 3,925Acres
• Averageseededacreageisjustunder4,000acres.
6
Weed Conditions on Farm
24%
39%
23%
4% 3%7%
No resistant weeds
Resistant weeds
suspected
Resistant weeds
confirmed
Weeds with multiple
resistances suspected
Weeds with multiple
resistances confirmed
Don’t know
• Amongst62%,resistantweedsareeithersuspectedorconfirmed.
7
Who Makes Weed Management Decisions?
• 28%relyonanagronomistorcropconsultanttomakeweedmanagementdecisions
8
73%
24%28%
2%
Me Family members involved with the
farm
Agronomist/crop consultant
Other
To which herbicide group(s) were the weeds resistant?
57%
65%
1%
4%
1%
13%
1%
2%
7%
Group 1
Group 2
Group 3
Group 4
Group 6
Group 9
Group 10
Group 14
Don't know
• WeedsareresistantprimarilytoGroups1,2and9.
9
Control Provided by Glyphosate
42% 42%
14%
2% 0% 0%
Excellent Good Average Poor Very poor Don’t know
• Atotalof84%ratethecontrolprovidedbyGlyphosateaseitherexcellentorgood.
10
Conditions on the Farm with Regards to Glyphosate
6%
1%
3%
3%
21%
66%
Don’t know
Weeds with multiples resistances, including resistance to …
Weeds with multiple resistances, including resistance to …
Glyphosate-resistant weeds confirmed
Glyphosate-resistant weeds suspected
No glyphosate-resistant weeds • Two-thirdsreporthavingno
glyphosate-resistantweeds.
• 21%suspectglyphosate-resistantweeds.
11
Location of Herbicide-Resistant Weeds on Farm
84%
5% 2% 5% 3%
In-crop Fence lines Irrigation channels and
ditches
Fallow areas Other
• In-cropistheprimarylocationofherbicide-resistantweeds.
12
Crops Managed in 2017
33%
2%
3%
3%
5%
6%
12%
18%
24%
34%
40%
41%
89%
90%
Other
Chickpea
Potatoes
Other pulse crops
Faba bean
Fallow
Corn
Forages
Lentil
Soybeans
Pea
Barley
Wheat
Canola • Canola(90%)andWheat(89%)werethemostfrequentlymentionedcropsbeingmanaged
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Attitudes Concerning Weed Management Practices
StatementsthatGenerateStrongAgreement
• Itisbesttovaryweedmanagementpracticesondifferentparcelsorlocationsofmyoperation
58%
• Onanannualbasis,Ivaryweedmanagementpractices,includingherbicideuse 49%
• Onafield-by-fieldbasis,Ivaryweedmanagementpractices,includingherbicideuse
49%
• EachfieldthatImanageisscoutedbeforemakingaweedmanagementdecisionforthatfield
48%
StatementsthatGenerateVeryLittleAgreement• Itisdifficulttofigureoutthebestwaytomanageweedsonmyfarm 5%• Iusehandweedinginsomefieldsandborderareastocontrolweeds 10%• Idonothaveadequatetimetomanageweedsonmyfarm 4%
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Factors that are “Very Important” When MakingWeed Management Decisions
36%
38%
39%
39%
47%
48%
50%
53%
58%
66%
73%
85%
Simplicity
Convenience
Commodity pricing
Protecting wildlife
Residual weed control
Herbicide cost
Flexibility
Protecting water quality
Controlling soil erosion
Worker safety
Herbicide mode of action
Protecting yield• Intermsofimportance,
“Protectingyield”receivesthemostvotesbyaconsiderablemargin.
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Herbicide Applications
• Herbicidesaremostfrequentlyappliedduringpost-emergence.
(PercentWhoMakeatleastOneApplicationattheTimeShown)
72%
73%
91%
44%
31%
15%
Pre-seed burndown
Post-harvest
Post-emergence
Pre-emergence
Seeding
Fallow
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Top Five Weeds Targeted for Control (Mentioned by more than 20%)
• Dominantweedstargetedinclude:Wildoats,Canadathistle,CleaversandKochia.
17
23%
24%
29%
31%
45%
45%
58%
71%
Dandelion
Narrow-leaved hawk’s beard
Wild buckwheat
Volunteer canola
Kochia
Cleavers
Canada thistle
Wild oats
Top Five Weeds Targeted for Control (Mentioned by fewer than 20%)
• Thischartshowsweedsthatwerementionedbyfewerthan20%ofourrespondents(butmorethan10%)
18
11%
11%
11%
13%
14%
14%
16%
19%
Round-leaved mallow
Barnyard grass
Hemp-nettle
Lamb’s-quarters
Sow thistles
Green Foxtail
Volunteer RR canola
Foxtails
67%76%
15%56%
5%30%
3%13%
59%35%
5%2%
5%37%
5%0%1%
3%1%1%
7%1%1%1%
20%13%
Group 1 Group 2 Group 3 Group 4 Group 5 Group 6 Group 7 Group 8 Group 9
Group 10 Group 11 Group 12 Group 13 Group 14 Group 15 Group 16 Group 18 Group 19 Group 20 Group 21 Group 22 Group 23 Group 24 Group 26 Group 27
Don't know
Herbicide Groups Applied
• Morethanone-half(50%)ofrespondentsmentionapplyingthefollowingherbicidegroupslastyear:Group2,Group1,Group9,Group4.
19
Herbicide Groups Applied (20% of More) – In Order of Frequency
• Inthischartwerankallgroupsappliedby20%ormoreofourrespondents
20%
30%
35%
37%
56%
59%
67%
76%
Group 27
Group 6
Group 10
Group 14
Group 4
Group 9
Group 1
Group 2
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Those Rating the Level of Control as Excellent
• HighestratingsareattributedtoGroup’s27,6,4and10.
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48%
42%
36%
39%
47%
44%
31%
27%
Group 27
Group 10
Group 14
Group 9
Group 6
Group 4
Group 2
Group 1
Level of Concern with Herbicide Resistance
• 84%ofrespondentssaidtheywereextremely/somewhatconcernedbyherbicideresistanceontheirfarm.
34%
50%
6%
7%
3%
0%
Extremely concerned
Somewhat concerned
Neither concerned nor unconcerned
Somewhat unconcerned
Not at all concerned
Don’t know
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Helpful Tools in Detecting/Managing Herbicide-Resistant Weeds
• MosthelpfultoolsincludeCropscoutingandlaboratorytesting
75%
57%
39%
29%24%
3%
Crop scouting
Laboratory testing for resistance
Herbicide selection
map
Risk assessment
map
On-farm trials
Other
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Top Three Contributors in the Development ofHerbicide-Resistant Weeds
• 72%agreethatover-relianceonaherbicidewithasinglemodeofactionisthetopcontributorinthedevelopmentofherbicide-resistantweeds.
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13%
17%
25%
27%
36%
37%
50%
72%
Reliance on herbicide-resistant crops
Biology of weeds
Poor weed management by farmers in an area
Lack of new chemistries to help farmers manage weeds
Cutting herbicide rates
Reliance on glyphosate
Tight cropping rotations
Over-reliance on a herbicide with a single mode of action
Practices Used to Manage Herbicide Resistance in 2017
• Dominantpracticesincluderotatingcrops,applyingfullratesofherbicidesandrotatingherbicidemodesofaction.
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6%
9%
11%
12%
13%
19%
49%
50%
59%
71%
78%
78%
80%
Machinery biosecurity
Harvest weed seed control
Seedbank management
Narrow rows
Choosing a planting date to reduce weed …
Spot applications
High seeding rates and planting densities
Applying multiple herbicides
Applying herbicide mixes
Applying multiple modes of action (Groups)
Rotating herbicide modes of action
Applying full rates of herbicides
Rotating crops
West
Evaluation of Various Approaches to Managing Herbicide-Resistant Weeds
• Privatecompanyinvestmentisratedbythelargestpercentageofrespondentstobe“veryhelpful”inmanagingherbicide-resistantweeds.
VeryHelpful
Privatecompanyinvestmentintothediscoveryofnewherbicidemodesofaction. 47%
Universityorgovernmentresearchers’discoveryofnewweedmanagementstrategies. 35%
Privatecompanyinvestmentintothediscoveryofnewherbicide-tolerantcrops. 22%
Financialincentivesfromprivatecompaniestospuradoptionofbestmanagementpracticesforweedcontrol.
17%
Financialincentivesfromgovernmenttospuradoptionofbestmanagementpracticesforweedcontrol.
18%
Privatelyledcommunityactiontoimproveadoptionofbestmanagementpracticesforweedcontrol. 10%
Someformofgovernment-mandatedbestmanagementpracticesrequiredforallfarmers. 8%
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Barriers to the Development of an Herbicide with aNew Mode of Action
• Topbarriersincludedgovernmentregulations,lackofinvestmentbychemicalcompaniesandgreaterinvestmentbycompaniesintoherbicide-resistantcrops.
5%
12%
19%
26%
29%
30%
31%
35%
Other
Growers are not vocal enough in demanding new products.
Lack of public funding for research and development of new herbicides.
Most effective modes of action have already been developed.
International resistance to herbicide-resistant crop traits.
Companies are investing more in developing herbicide-resistant crops.
Lack of investment on the part of the chemical companies.
Government regulations (federal or provincial).
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