Survey Results
2008 Apple Grower Survey
The 2008 Washington apple grower and manager pest management survey went out in February of 2009 to survey practices used during the 2008 crop season. Returns came in during July 2009. Out of nearly 1500 orchard owners and managers recieving surveys, about 27% choose to participate representing close to 78,000 acreas. Summary results of this survey were analyzed Fall of 2009 and are now available to view online.
Grower Survey Results
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B1: How frequently does codling moth cause unacceptable crop damage in the apple orchard(s) you own or manage?
| Frequency of crop damage |
Frequency |
Percent |
| Never |
97 |
24.9 |
| Less than 1 out of every 5 years |
93 |
23.9 |
| About 1 out of every 5 years |
43 |
11.1 |
| About 2 out of every 5 years |
58 |
14.9 |
| About 3 out of every 5 years |
19 |
4.9 |
| About 4 out of every 5 years |
12 |
3.1 |
| Every year |
67 |
17.2 |
| Total |
389 |
100.0 |
Missing = 14 |
|
 |
B2: If no controls were applied for codling moth this year, what level of crop injury would you expect by harvest?
| Level of crop injury |
Frequency |
Percent |
| Less than 1% |
14 |
3.6 |
| 1-2% |
15 |
3.9 |
| 3-5% |
28 |
7.2 |
| 6-10% |
42 |
10.9 |
| More than 10% |
287 |
74.4 |
| Total |
386 |
100.0 |
Missing = 1 |
|
 |
B3a: During the 2008 growing season, did you use any OP insecticides as a control for codling moth?
OP Insecticide |
Frequency |
Percent |
Missing |
| Guthion (azinphos methyl) |
315 |
79.5 |
7 |
| Imidan (phosmet) |
99 |
25.1 |
8 |
| Diazinon |
26 |
6.6 |
9 |
|
 |
B3b: If you used the following OP insecticides as a control for codling moth, please indicate the number of applications you used in 2008 (frequency with percent in parentheses).
Number of applications |
Guthion |
Imidan |
Diazinon |
| 1 application |
55 (17.9%) |
67 (69.8%) |
18 (72%) |
| 2 applications |
113 (36.8%) |
24 (25%) |
4 (16%) |
| 3 applications |
110 (35.8%) |
4 (4.2%) |
3 (12%) |
| 4+ applications |
29 (9.5%) |
1 (1%) |
0 (0%) |
| Total |
307 |
96 |
25 |
| Skipped |
81 |
296 |
368 |
| Missing |
15 |
11 |
10 |
|
 |
B4: Did your use of OP insecticides (Guthion, Diazinon, and Imidan) for codling moth control over the past three years (2006-2008) change?
| Change in OP use |
Frequency |
Percent |
| My use of OP insecticides for codling moth control decreased over the past three years. |
194 |
49.5 |
| My use of OP insecticides for codling moth control remained about the same over the past three years. |
155 |
39.6 |
| My use of OP insecticides for codling moth control increased over the past three years. |
24 |
6.1 |
| I did not use OP insecticides over the past three years. |
19 |
4.8 |
| Total |
392 |
100.0 |
| Missing = 11 |
|
 |
B5a: During the 2008 growing season, did you use the OP alternatives as a control for codling moth?
Insecticide |
Frequency |
Percent |
Missing |
| Pheromones (mating disruption) |
253 |
64.9 |
13 |
| Assail (acetamiprid) |
210 |
54.3 |
16 |
| Horticultural spray oil |
193 |
49.9 |
16 |
| Delegate (spinetoram) |
173 |
44.8 |
17 |
| Intrepid (methoxyfenozide) |
105 |
27.7 |
24 |
| Altacor (rynaxypyr) |
90 |
23.5 |
20 |
| Entrust/Success (spinosad) |
86 |
22.9 |
27 |
| Rimon (novaluron) |
81 |
21.3 |
22 |
| Esteem (pyriproxifen) |
54 |
14.2 |
23 |
| Calypso (thiacloprid) |
34 |
8.9 |
22 |
| CM granulosis virus |
31 |
8.3 |
31 |
|
Other:
• Warrior (4)
• Surround (1)
• Hand thinning (1) |
|
 |
B5b: If you used the following OP alternatives as a control for codling moth, please indicate the number of applications you used in 2008 (frequency with percent in parentheses).
[Data corresponds to left graph] |
| Number of applications |
Pheromones
(mating disruption) |
Assail (acetamiprid) |
Horticultural spray oil |
Delegate (spinetoram) |
Intrepid (methoxyfenozide) |
Altacor (rynaxypyr) |
| 1 |
220 (94%) |
138 (68.6%) |
111 (61.7%) |
120 (71.9%) |
91 (89.2% |
64 (71.1%) |
| 2 |
10 (4.3%) |
55 (27.4%) |
43 (23.9%) |
42 (25.1%) |
9 (8.8%) |
23 (25.6%) |
| 3 |
3 (1.3%) |
7 (3.5%) |
22 (12.2%) |
4 (2.4%) |
1 (1%) |
2 (2.2%) |
| 4+ |
1 (0.4%) |
1 (0.5%) |
4 (2.2%) |
1 (0.6%) |
1 (1%) |
1 (1.1%) |
| Total |
234 |
201 |
180 |
167 |
102 |
90 |
| Skipped |
141 |
177 |
195 |
213 |
274 |
293 |
| Missing |
28 |
25 |
28 |
23 |
27 |
20 |
[Data corresponds to right graph] |
| Number of applications |
Entrust/Success (spinosad) |
Rimon (novaluron) |
Esteem (pyriproxifen) |
Calypso (thiacloprid) |
CM granulosis virus |
Other |
| 1 |
65 (79.3%) |
55 (72.4%) |
43 (82.7%) |
27 (84.4%) |
22 (71%) |
3 (37.5%) |
| 2 |
11 (13.4%) |
20 (26.3%) |
7 (13.5%) |
5 (15.6%) |
7 (22.6%) |
3 (37.5%) |
| 3 |
4 (4.9%) |
1 (1.3%) |
1 (1.9%) |
0 (0%) |
2 (6.4%) |
1 (12.5%) |
| 4+ |
2 (2.4%) |
0 (0%) |
1 (1.9%) |
0 (0%) |
0 (0%) |
1 (12.5%) |
| Total |
82 |
76 |
52 |
32 |
31 |
8 |
| Skipped |
290 |
300 |
326 |
347 |
341 |
394 |
| Missing |
31 |
27 |
25 |
24 |
31 |
1 |
|
 |
 |
B6: Did your use of OP alternatives (listed in the previous question) for codling moth control over the past three years (2006-2008) change?
| OP alternative use |
Frequency |
Percent |
| My use of OP alternatives for codling moth control decreased over the past three years. |
48 |
12.4 |
| My use of OP alternatives for codling moth control remained about the same over the past three years. |
141 |
36.4 |
| My use of OP alternatives for codling moth control increased over the past three years. |
180 |
46.5 |
| I did not use OP alternatives for codling moth control over the past three years. |
18 |
4.7 |
| Total |
387 |
100.0 |
Missing = 16 |
|
 |
B7: Over the past three years did codling moth injury in the apple orchard(s) you own or manage decrease, remain about the same, or increase?
| Change in CM injury |
Frequency |
Percent |
| Codling moth injury decreased by more than 5% |
55 |
13.8 |
| Codling moth injury decreased by 2-5% |
49 |
12.3 |
| Codling moth injury remained about the same (± 0-2%) |
226 |
56.8 |
| Codling moth injury increased by 2-5% |
43 |
10.8 |
| Codling moth injury increased by more than 5% |
25 |
6.3 |
| Total |
398 |
100.0 |
Missing = 5 |
|
 |
B8: Over the past three years did the cost of codling moth control in the apple orchard(s) you own or manage decrease, remain about the same, or increase?
| Change in cost of CM control |
Frequency |
Percent |
| The cost of codling moth control decreased by more than 10% |
4 |
1.0 |
| The cost of codling moth control decreased by 3-10% |
12 |
3.0 |
| The cost of codling moth control remained about the same (± 0-3%) |
80 |
20.1 |
| The cost of codling moth control increased by 3-10% |
170 |
42.6 |
| The cost of codling moth control increased by more than 10% |
133 |
33.3 |
| Total |
399 |
100.0 |
Missing = 4 |
|
 |
B9: How many pheromone traps did you use per acre during the 2008 growing season?
| Number of traps per acre |
Frequency |
Percent |
| 1 trap per 2.5 acres or less |
92 |
23.5 |
| 1 trap per 2.6-5 acres |
99 |
25.3 |
| 1 trap per 5.1-10 acres |
77 |
19.7 |
| 1 trap per 10.1 acres or more |
54 |
13.8 |
| I did not use pheromone traps during the 2008 growing season. |
69 |
17.7 |
| Total |
391 |
100.0 |
Missing = 12 |
|
 |
B10: How often did you use the IPM practices as part of your management program for codling moth? (frequency with percent in parentheses).
| IPM tactic |
Never |
Rarely |
Occasionally |
Often |
Missing |
| Field monitoring for damage |
9 (2.3%) |
7 (1.8%) |
59 (15.1%) |
315 (80.8%) |
13 |
| Pheromone traps |
64 (17.3%) |
8 (2.2%) |
35 (9.5%) |
263 (71.1%) |
33 |
| Degree day models |
47 (12.8%) |
22 (6.0%) |
58 (15.8%) |
240 (65.4%) |
36 |
| Delayed distribution of bins in orchard |
84 (23.1%) |
32 (8.8%) |
64 (17.6%) |
184 (50.5%) |
39 |
| Resistance management strategies |
83 (24.2%) |
27 (7.9%) |
60 (17.5%) |
173 (42.9%) |
60 |
| Economic or treatment thresholds |
116 (33.9%) |
51 (14.9%) |
72 (21.1%) |
103 (30.1%) |
61 |
| Border sprays |
99 (26.7%) |
42 (11.3%) |
133 (35.8%) |
97 (26.1%) |
32 |
| Reduced pesticide rates |
166 (47.4%) |
71 (20.3%) |
76 (18.9%) |
37 (10.6%) |
53 |
| Biological controls (parasites or predators) |
245 (70.2%) |
41 (11.7%) |
38 (10.9%) |
25 (7.2%) |
54 |
| Alternate row spraying |
220 (61.1%) |
57 (15.8%) |
60 (16.7%) |
23 (6.4%) |
43 |
| Other |
28 (70%) |
1 (2.5%) |
4 (10%) |
7 (17.5%) |
363 |
|
Other
• Mating disruption (4)
• Sprayable pheromone
• C.M. puffers in bin piles on site
• Checked traps no- count
• Strips (written comment next to
pheromone traps)
• Remove stings
• Virus applications
• Summer oils
• Specific sections
• Pest Consultant
• Evening watering with overhead system,
seemed to help for moth control
and fruit color late in the season. |
 |
B11: Did your use of the IPM practices as a control for codling moth change?
| IPM tactic |
Did not use |
Decreased |
Same |
Increased |
Missing |
| Resistance management strategies |
75 (21.1%) |
10 (2.8%) |
159 (44.7%) |
112 (31.5%) |
47 |
| Degree day models |
44 (12.0%) |
12 (3.3%) |
213 (58.0%) |
98 (26.7%) |
36 |
| Field monitoring for damage |
11 (2.8%) |
19 (4.9%) |
254 (65.8%) |
102 (26.4%) |
17 |
| Pheromone traps |
44 (11.8%) |
14 (3.8%) |
221 (59.4%) |
93 (25.0%) |
31 |
| Border sprays |
89 (24.0%) |
19 (5.1%) |
189 (50.9%) |
74 (19.9%) |
32 |
| Delayed distribution of bins in orchard |
66 (17.9%) |
6 (1.6%) |
233 (63.3%) |
63 (17.1%) |
35 |
| Economic or treatment thresholds |
91 (26%) |
12 (3.4%) |
199 (56.9%) |
48 (13.7%) |
53 |
| Reduced pesticide rates |
134 (37.6%) |
32 (9.0%) |
161 (45.2%) |
29 (8.1%) |
47 |
| Biological controls (parasites or predators) |
187 (52.8%) |
12 (3.4%) |
133 (37.6%) |
22 (6.2%) |
49 |
| Alternate row spraying |
163 (44.5%) |
27 (7.4%) |
157 (42.9%) |
19 (5.2%) |
37 |
| Other |
28 (44.4%) |
3 (4.8%) |
26 (41.3%) |
6 (9.5%) |
340 |
|
Other
• Mating disruption (3)
• Sprayable pheromone
• C.M. puffers in bin piles on site
• Checked traps no- count
• Strips (written comment next to
pheromone traps)
• Remove stings
• Virus applications
• Specific sections
• Used private consultants since 1992
• Evening irrigation
• Alternate row spraying (future)
|
 |
B12: What percentage of the apple acres you own or manage do your answers to QuestionsB1 through B11 (questions about codling moth) apply to?
| Percentage of acreage |
Frequency |
Percent |
| 1-10% |
12 |
3.1 |
| 11-25% |
14 |
3.6 |
| 26-50% |
11 |
2.8 |
| 51-75% |
18 |
4.6 |
| 76-99% |
38 |
9.7 |
| 100% |
298 |
76.2 |
| Total |
391 |
100.0 |
Missing = 12 |
|
 |
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