Tree Fruit Research & Extension Center

Apple IPM Transition Project

Survey Results

2007 Field Season Consultant Survey

The first set of surveys went out to apple industry consultants in July 2008. The results are now available for viewing online here or you can download the report. Another consultant survey went out in January of 2010 asking about practices during the 2009 field season. The results of that survey are now available for viewing by clicking the link to the left.

Consultant Survey Results
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B1: How often does codling moth cause noticeable crop damage, result in higher production costs, or make production more difficult in the apple orchards for which you make recommendations?

 

  Frequency Percent
Less than 1 out of every 5 years 0 0
About 1 out of every 5 years 3 7.7
About 2 out of every 5 years 1 2.6
About 3 out of every 5 years 6 15.4
About 4 out of every 5 years 3 7.7
Every year 26 66.7
Total 39 100.0
Non-responses = 1

 

 
B2: If no controls were applied for codling moth this year, what level of crop injury would you expect by harvest?

 

  Frequency Percent
Less than 1% 1 2.6
1-2% 0 0
3-5% 1 2.6
6-10% 11 28.2
More than 10% 26 66.7
Total 39 100.0
Non-responses = 1


 
B3: During the 2007 growing season, did you recommend any of the following insecticides as a control for codling moth?

 

  Frequency Percent
Guthion (azinphos methyl) 37 92.5
Imidan (phosmet) 23 57.5
Diazinon 2 5.0
Non-responses = 0

 

 
B4: How did the frequency of your recommendation of these insecticides (Guthion, Diazinon, and Imidan) as a control for codling moth compare in 2007 growing season to 3 previous growing seasons?

 

  Frequency Percent
The frequency of my recommendation of these insecticides was higher in 2007 12 30.0
The frequency of my recommendation of these insecticides was lower in 2007 14 35.0
The frequency of my recommendation of these insecticides remained about the same in 2007 13 32.5
I did not recommend these insecticides during the 2004-2007 growing seasons 1 2.5
Total 40 100.0
Non-responses = 0


 
B5: During the 2007 growing season, did you recommend this insecticide as a control for codling moth?

 

Insecticide Frequency Percent Non-
Responses
Assail (acetamiprid) 38 95.0 0
Pheromones (mating disruption) 38 95.0 0
Horticultural spray oil 35 87.5 0
CM granulosis virus 34 85.0 0
Entrust (spinosad) 33 82.5 0
Rimon (novaluron) 32 82.1 1
Intrepid (methoxyfenozide)* 27 67.5 0
Esteem (pyrifoxen) 15 38.5 1
Calypso (thiacloprid) 10 25.0 0
Other (Warrior – used up supply) 1 2.5  
Other (Pyganic) 1 2.5  
Other (Delegate) 1 2.5  
Other (Warrior/ProAxis) 1 2.5  
Other (Agrimels & oil) 1 2.5  

*1 comment = uses Intrepid as a “petal full application for OBCR; helps with CM eggs”

 
B6: How often do you recommend or practice this IPM tactic as part of your consulting program for codling moth management?

 

IPM tactic Never
(%)
Rarely
(%)
Occasionally
(%)
Often
(%)
Non-
responses
Field monitoring for damage       100.0 0
Pheromone traps       100.0 0
Degree day models     5.0 95.0 0
Resistance management strategies     10.0 90.0 0
Economic or treatment thresholds 5.1 7.7 28.2 59.0 1
Border sprays   2.5 47.5 50.0 0
Delay distribution of bins in orcharda 10.0 15.0 27.5 47.5 0
Use of biological control agents 7.7 30.8 46.2 15.4 1
Reduced pesticide ratesb 46.2 23.1 23.1 7.7 1
Alternate row middle sprayingc 43.6 35.9 17.9 2.6 1
Other (Develop control measure/strategies for bin piles)       2.5  
Other (Mating disruption)       2.5  
Other (Preserve ENDEMIC biocontrols)       2.5  

    a 1 comment = delays distribution of bins in orchard “whenever possible”;
    b 1 person circled both “never” and “rarely” for use of biological control agents – coded as non-response;
    c 1 comment = uses alternate row middle spraying on “small trees”.

How often do you recommend these IPM tactics (%)?

 
B7: Over the past three years did codling moth injury in the apple orchards for which you make recommendations increase, decrease, or remain about the same?

 

  Frequency Percent
Codling moth injury increased 16 40.0
Codling moth injury decreased 5 12.5
Codling moth injury remained about the same 19 47.5
Total 40 100.0
Non-responses = 0

 

 
B8: Over the past three years did the cost of codling moth control in the apple orchards for which you make
recommendations increase, decrease, or remain about the same?

 

  Frequency Percent
The cost of codling moth control increased 37 94.9
The cost of codling moth control decreased 0 0
The cost of codling moth control remained about the same 2 5.1
Total 39 100.0
Non-responses = 1

 

 
B9: What percentage of the conventionally managed apple acres for which you make recommendations would you estimate the preceding section on codling moth applies to?

 

% of acres Frequency Percent
1-10% 2 5.4
11-25% 2 5.4
26-50% 2 5.4
51-75% 10 27.0
76-99% 15 40.5
100% 6 16.2
Total 37 100.0
Non-responses = 3a b

 

a 1 comment = one person felt that different percentages applied to different questions (for example, his answer for changing CM injury applied to 1-10% of his acres, while his answer for changing costs applied to 76-99% of his acres). Because there were multiple answers recorded, his answer(s) to this question had to be counted as a non-response.

b 1 comment = “?”, i.e. the person probably didn’t understand question and so left it blank.

 

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