Tree Fruit Research & Extension Center

Apple IPM Transition Project

Survey Results

2010 Apple Grower Survey

The 2010 Washington apple grower and manager pest management survey went out in January of 2011 to survey practices used during the 2010 crop season. Out of 2,155 eligible participants recieving surveys, about 25% choose to participate. Those surveyed made pest management descisions on a mean of 235 acres of apples. Summary results of this survey were analyzed Fall of 2011 and are now available to view online or download here.

Grower Survey Results
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Note on data interpretation: Some data tables include a field for "missing". "Missing" indicates that respondents chose not to answer that particular question in its entirety. Some tables include the additional field, "skipped". "Skipped" data can occur on questions where an answer was not applicable for the respondent, given their response to the preceding question.
Sample Group

Surveys were mailed out to both people who had responded to the 2008 apple survey (repeat group) and to those who were new reciepients (new group). Since the survey was mailed to a full sample of apple orchard owners and managers on a comprehensive list with additional mailings sent to orchard owners with 4 or more orchards, the groups can be further divided into those who only had or managed a 1 to 3 orchards (single group) and those responsible for 4 or more (multiple group) orchards.

  Frequency Percent
Single-Repeat 151 27.7
Single-New 351 64.3
Multiple-Repeat 10 1.8
Multiple-New 34 6.2
Total 546 100
Sample group chart

 

 
A1: Do you make pest management decisions in one or more apple orchard(s) in Washington?

 

Response Frequency Percent
No 0 0
Yes 537 98.4
Total 537 100
Missings = 9

 
A2: Do you own, operate, or manage ONLY organic or transitional organic apple orchard(s)?

 

Response Frequency Percent
No 540 99.6
Yes 2 0.4
Total 542 100
Missing = 4

 

 
A3: How would you describe your primary role in the apple orchard(s) with which you are associated?

 

Role Frequency Percent
I am the orchard owner (or one of multiple owners) 408 76.4
I am a hired orchard manager 88 16.5
Other * 38 7.1
Total 534 100
Missing = 12


* Other
Fieldman/Consultant (20); Leasing (9); Owner and
Manager (8); Other - not specified (2).

 
A4: Over the past three years, which insects caused unacceptable crop damage in the apple orchard(s) you own or manage?

 

Insect Frequency Percent
Codling moth 267 48.9
Rosy apple aphid 81 14.8
Campylomma 78 14.3
Wooly apple aphid 76 13.9
Stink bug 71 13.0
Leafroller 68 12.5
San Jose scale 46 8.4
Thrips 44 8.1
Green aphid 32 5.9
Spider mite 23 4.2
Rust mite 20 3.7
LeafminerLacanobia 15 2.7
Mealybug 13 2.4
Leafminer 10 1.8
Leafhopper 8 1.5
Other (Birds, Pear psylla, Army caterpillar, Russet, Earwigs) 6 1.1
I did not have unacceptable crop damage. 216 39.6
Missing = 0

 

 
A5: Over the past three years, which one of the insects listed below has been the biggest production problem in the apple orchard(s) you own or manage?

 

Insect Frequency Percent
Codling moth 297 57.3
Multiple insects 60 11.6
Stink bug 29 5.6
Woolly apple aphid 22 4.2
Rosy apple aphid 16 3.1
Leafroller 15 2.9
Campylomma 14 2.7
San Jose scale 5 1.0
Rust mite 3 0.6
Thrips 2 0.4
Spider mite 1 0.2
Leafminer 1 0.2
Leafhopper 1 0.2
Green aphid 1 0.2
Other * 3 0.6
I have not had any insect problems 49 8.6
Total 519 100
Missing = 27

includes respondents who checked multiple answers including codling moth.
* Other: apple leaf midge, deer, pear psylla.

 

 

 

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