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.
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 |
135 |
25.8 |
| Less than 1 out of every 5 years |
145 |
27.7 |
| About 1 out of every 5 years |
81 |
15.5 |
| About 2 out of every 5 years |
54 |
10.3 |
| About 3 out of every 5 years |
33 |
6.3 |
| About 4 out of every 5 years |
12 |
2.3 |
| Every year |
63 |
12.0 |
| Total |
523 |
100 |
Missing = 23 |
|
 |
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% |
26 |
5.0 |
| 1-2% |
30 |
5.8 |
| 3-5% |
53 |
10.3 |
| 6-10% |
65 |
12.6 |
| More than 10% |
341 |
66.2 |
| Total |
515 |
100 |
Missing = 31 |
|
 |
B3a: During the 2010 growing season, did you use any OP insecticides as a control for codling moth?
OP Insecticide |
Frequency |
Percent |
Missing |
| Guthion (azinphos methyl) |
387 |
73.2 |
17 |
| Imidan (phosmet) |
98 |
18.6 |
20 |
| Diazinon |
34 |
6.5 |
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 |
130 (34.0%) |
58 (59.8%) |
27 (79.4%) |
| 2 applications |
187 (49.0%) |
30 (30.9%) |
7 (20.6%) |
| 3 applications |
55 (14.4%) |
7 (7.2%) |
0 (0%) |
| 4+ applications |
10 (2.6%) |
2 (2.1%) |
0 (0%) |
| Total |
382 |
97 |
34 |
| Skipped |
142 |
428 |
490 |
| Missing |
22 |
21 |
22 |
|
 |
B4: Did your use of OP insecticides (Guthion, Diazinon, and Imidan) for codling moth control over the past three years (2008-2010) change?
| Change in OP use |
Frequency |
Percent |
| My use of OP insecticides for codling moth control decreased over the past three years. |
306 |
58.7 |
| My use of OP insecticides for codling moth control remained about the same over the past three years. |
156 |
29.9 |
| My use of OP insecticides for codling moth control increased over the past three years. |
11 |
2.1 |
| I did not use OP insecticides over the past three years. |
48 |
9.2 |
| Total |
521 |
100 |
| Missing = 25 |
|
 |
B5a: During the 2010 growing season, did you use the OP alternatives as a control for codling moth?
| OP Alternative |
Frequency |
Percent |
Missing |
| Pheromones (mating disruption) |
362 |
68.7 |
19 |
| Assail (acetamiprid) |
304 |
58.6 |
27 |
| Delegate (spinetoram) |
289 |
56.2 |
32 |
| Horticultural spray oil |
283 |
55.7 |
38 |
| Altacor (rynaxypyr) |
277 |
53.9 |
32 |
| Intrepid (methoxyfenozide) |
156 |
30.9 |
41 |
| Calypso (thiacloprid) |
81 |
16.1 |
42 |
| Rimon (novaluron) |
80 |
16.0 |
45 |
| Esteem (pyriproxifen) |
80 |
15.8 |
41 |
| Entrust/Success (spinosad) |
79 |
15.7 |
43 |
| Warrior (lambda-cyhalothrin) |
78 |
15.6 |
46 |
| CM granulosis virus |
47 |
9.4 |
46 |
| Danitol (fenpropathrin) |
10 |
2.0 |
45 |
| Belt (flubendiamide) |
10 |
2.0 |
46 |
| Voliam Express (lambda-cyhalothrin + chlorantraniliprole) |
5 |
1.0 |
43 |
| Voliam Flexi (thimethoxam + chlorantraniliprole) |
2 |
0.4 |
43 |
|
 |
B5b: If you used the following OP alternatives as a control for codling moth, please indicate the number of applications you used in 2010 (frequency with percent in parentheses).
| OP alternative |
1 Application |
2 Applsications |
3 Apllications |
4 + Applications |
Total |
Skipped |
Missing |
Pheromones
|
342 (96.7%) |
5 (1.5%) |
3 (0.9%) |
3 (0.9%) |
335 |
165 |
46 |
| Assail |
198 (68.0%) |
83 (28.5%) |
8 (2.7%) |
2 (0.7%) |
291 |
215 |
40 |
| Delegate |
196 (71.0%) |
70 (25.4%) |
9 (3.3%) |
1 (0.4%) |
276 |
225 |
45 |
Horticultural
spray oil |
149 (56.2%) |
87 (32.8%) |
24 (9.1%) |
5 (1.9%) |
265 |
224 |
57 |
| Altacor |
175 (66.3%) |
82 (31.2%) |
5 (1.9%) |
2 (0.8%) |
264 |
237 |
45 |
| Intrepid |
132 (89.8%) |
8 (5.4%) |
7 (4.8%) |
0 (0%) |
147 |
349 |
50 |
| Calypso |
61 (82.4%) |
12 (16.4%) |
1 (1.4%) |
0 (0%) |
74 |
423 |
49 |
| Rimon |
64 (83.1%) |
11 (14.3%) |
1 (1.3%) |
1 (1.3%) |
77 |
421 |
48 |
| Esteem |
64 (83.1%) |
11 (14.3%) |
2 (2.6%) |
0 (0%) |
77 |
424 |
45 |
| Entrust/Success |
52 (72.2%) |
17 (23.6%) |
2 (2.8%) |
1 (1.4%) |
72 |
423 |
51 |
| Warrior |
53 (69.7%) |
17 (22.4%) |
4 (5.3%) |
2 (2.6%) |
76 |
422 |
48 |
CM granulosis
virus |
27 (60.0%) |
11 (23.9%) |
3 (6.7%) |
5 (11.1%) |
46 |
453 |
47 |
| Danitol |
5 (55.6%) |
4 (44.4%) |
0 (0%) |
0 (0%) |
9 |
491 |
46 |
| Belt |
8 (100%) |
0 (0%) |
0 (0%) |
0 (0%) |
8 |
490 |
48 |
| Viliam Express |
1 (100.0%) |
0 (0%) |
0 (0%) |
0 (0%) |
1 |
498 |
44 |
| Voliam Flex |
1 (100.0%) |
0 (0%) |
0 (0%) |
0 (0%) |
1 |
501 |
44 |
| Other * |
5 (83.3%) |
0 (0%) |
0 (0%) |
1 (16.7%) |
6 |
338 |
202 |
* Other (5): AgrMeck, Proclaim, Tourism, Fish oil, Puffers. |
 |
B6: Did your use of OP alternatives (listed in the previous question) for codling moth control over the past three years (2008-2010) change?
| OP alternative use |
Frequency |
Percent |
| My use of OP alternatives for codling moth control decreased over the past three years. |
70 |
13.6 |
| My use of OP alternatives for codling moth control remained about the same over the past three years. |
186 |
36.3 |
| My use of OP alternatives for codling moth control increased over the past three years. |
240 |
46.8 |
| I did not use OP alternatives for codling moth control over the past three years. |
17 |
3.3 |
| Total |
513 |
100 |
Missing = 33 |
|
 |
B7: Over the past three years (2008-2010) 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% |
66 |
12.2 |
| Codling moth injury decreased by 2-5% |
62 |
11.5 |
| Codling moth injury remained about the same (± 0-2%) |
328 |
60.9 |
| Codling moth injury increased by 2-5% |
59 |
10.9 |
| Codling moth injury increased by more than 5% |
24 |
4.5 |
| Total |
539 |
100 |
Missing = 7 |
|
 |
B8: Over the past three years (2008-2010) 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% |
13 |
2.4 |
| The cost of codling moth control decreased by 3-10% |
15 |
2.8 |
| The cost of codling moth control remained about the same (± 0-3%) |
105 |
19.5 |
| The cost of codling moth control increased by 3-10% |
228 |
42.3 |
| The cost of codling moth control increased by more than 10% |
178 |
33.0 |
| Total |
539 |
100 |
Missing = 7 |
|
 |
B9: How many pheromone traps did you use per acre during the 2010 growing season?
| Number of traps per acre |
Frequency |
Percent |
| 1 trap per 2.5 acres or less |
117 |
22.0 |
| 1 trap per 2.6-5 acres |
151 |
28.4 |
| 1 trap per 5.1-10 acres |
128 |
24.1 |
| 1 trap per 10.1 acres or more |
53 |
10.0 |
| I did not use pheromone traps during the 2010 growing season. |
83 |
15.5 |
| Total |
532 |
100 |
Missing = 14 |
|
 |
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 |
12 (2.3%) |
10 (1.9%) |
75 (14.2%) |
431 (81.6%) |
18 |
| Pheromone traps |
66 (12.9%) |
11 (2.2%) |
38 (7.4%) |
396 (77.5%) |
35 |
| Degree day models |
56 (11.2%) |
34 (6.8%) |
106 (21.3%) |
302 (60.6%) |
48 |
| Resistance management strategies |
127 (26.7%) |
29 (6.1%) |
91 (19.2%) |
228 (48.0%) |
71 |
| Delayed distribution of bins in orchard |
122 (24.5%) |
58 (11.7%) |
79 (15.9%) |
238 (47.9%) |
49 |
| Border sprays |
140 (27.8%) |
70 (13.9%) |
153 (30.4%) |
140 (27.8%) |
43 |
| Economic or treatment thresholds |
167 (35.8%) |
58 (12.4%) |
113 (24.2%) |
128 (27.5%) |
80 |
| Reduced pesticide rates |
220 (45.7%) |
92 (19.1%) |
106 (22.0%) |
63 (13.1%) |
65 |
| Biological controls (parasites or predators) |
327 (68.8%) |
55 (11.6%) |
52 (10.9%) |
41 (8.6%) |
71 |
| Alternate row spraying |
281 (57.0%) |
72 (14.6%) |
99 (20.1%) |
41 (8.3%) |
53 |
| Other * |
48 (70.6%) |
4 (5.9%) |
1 (1.5%) |
15 (22.1%) |
478 |
|
* Other: Mating disruption/Pheromone strips/Puffers (13), Hand removal/Thin off damaged fruit/stings (3), Spray all rows (2), DA traps, Hot spot sprays (prop piles, cabins, wood piles, neighbors), Mineral oil every 10 d, More applications, Only roundup for weeds, Spray consultant, Use of sticker/extended with repeated treatments after significant rainfall. |
 |
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 |
87 (18.0%) |
14 (2.9%) |
232 (48.0%) |
150 (31.1%) |
63 |
| Pheromone traps |
40 (7.7%) |
19 (3.7%) |
335 (64.8%) |
123 (23.8%) |
29 |
| Degree day models |
47 (9.4%) |
14 (2.8%) |
324 (65.1%) |
113 (22.7%) |
48 |
| Field monitoring for damage |
1.3 (2.5%) |
20 (3.8%) |
373 (68.3%) |
118 (22.5%) |
22 |
| Border sprays |
107 (21.3%) |
22 (4.4%) |
277 (55.1%) |
97 (19.3%) |
43 |
| Delayed distribution of bins in orchard |
96 (19.2%) |
9 (1.8%) |
327 (65.5%) |
67 (13.4%) |
47 |
| Economic or treatment thresholds |
121 (25.4%) |
22 (4.6%) |
284 (59.7%) |
49 (10.3%) |
70 |
| Reduced pesticide rates |
150 (30.7%) |
26 (5.3%) |
271 (55.5%) |
41 (8.4%) |
58 |
| Biological controls (parasites or predators) |
224 (46.6%) |
18 (3.7%) |
209 (43.5%) |
30 (6.2%) |
65 |
| Alternate row spraying |
205 (41.1%) |
47 (9.4%) |
207 (41.5%) |
40 (8.0%) |
47 |
| Other * |
34 (41.0%) |
3 (3.6%) |
41 (49.4%) |
5 (6.0%) |
463 |
|
* Other: Mating disruption/Pheromone strips/Puffers (8), DA traps, Every row spraying, Hot spot sprays, Mineral oil every 10d, More applications. |
 |
B12: What percentage of the apple acres you own or manage do your answers to Questions B1 through B11 (questions about codling moth) apply to?
| Percentage of acreage |
Frequency |
Percent |
| 1-10% |
16 |
3.0 |
| 11-25% |
12 |
2.3 |
| 26-50% |
18 |
3.4 |
| 51-75% |
22 |
4.2 |
| 76-99% |
55 |
10.5 |
| 100% |
402 |
76.6 |
| Total |
525 |
100 |
Missing = 21 |
|
 |
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