Disease Problems
White mold was the worst disease problem for 39% of
Northarvest respondents on 42% of their acres,
followed by root rot for 15% of respondents on 15% of their acres, rust for 6% of
respondents on 6%
of their acres and bacterial blight for 5% of respondents on 4% of their acres (Table 8).
White mold
was a less common problem in 1998 than in 1997 and root rot was much more common in 1998
than
in 1997. More respondents reported having no serious disease problem ("none") in
1998 than in 1997.
Root rot was the worst disease problem for 33% of
Minnesota respondents on 46% of their acres.
White mold was the worst disease problem for 33% of Minnesota respondents on 28% of their
acres,
followed by rust for 5% of Minnesota respondents on 7% of their acres and bacterial blight
for 7% of
Minnesota respondents on 6% of their acres (Table 8). Root rot was a much greater problem
in Minnesota
in 1998 than in 1997 and white mold was less of a problem.
White mold was the worst disease problem for 42% of
North Dakota respondents on 48% of their acres,
followed by rust for 7% of North Dakota respondents on 6% of their acres, root rot for 6%
of respondents
on 4% of their acres and bacterial blight for 4% of respondents on 4% of their acres
(Table 8). White mold
was a less common problem in North Dakota in 1998 than in 1997.
| Respondents | Acres Reportedb | |||
Worst Disease Problem |
Number | % | Number | % |
| Minnesota | ||||
| Root Rot | 19 | 33.3 | 11,461 | 46.0 |
| White Mold | 19 | 33.3 | 6,863 | 27.6 |
| 3 | 5.3 | 1,649 | 6.6 | |
| Bacterial Blight | 4 | 7.0 | 1,374 | 5.5 |
| Alternaria | 1 | 1.8 | 700 | 2.8 |
| None | 6 | 10.5 | 1,163 | 4.7 |
| North Dakota | ||||
| White Mold | 50 | 42.0 | 34,163 | 47.6 |
| Rust | 8 | 6.7 | 3,920 | 5.5 |
| Root Rot | 7 | 5.9 | 3,040 | 4.2 |
| Bacterial Blight | 5 | 4.2 | 2,536 | 3.5 |
| Alternaria | 1 | 0.8 | 600 | 0.8 |
| None | 34 | 28.6 | 18,266 | 25.4 |
| Northarvest | ||||
| White Mold | 69 | 39.2 | 41,026 | 42.4 |
| Root Rot | 26 | 14.8 | 14,501 | 15.0 |
| Rust | 11 | 6.3 | 5,569 | 5.8 |
| Bacterial Blight | 9 | 5.1 | 3,910 | 4.0 |
| Alternaria | 2 | 1.1 | 1,300 | 1.3 |
| None | <40 | 22.7 | 19,429 | 20.1 |
a
Ranked as No. 1 disease problem by respondents. White mold was ranked as one of the three worst
diseases by Northarvest respondents on 53% of
dry bean acres reported, considerably less than in 1995-1997. Root rot was ranked as one
of the three
worst diseases by Northarvest respondents on 36% of respondents' acres, up considerably
from 1997.
Bacterial blight was ranked as one of the three worst diseases by Northarvest respondents
on 32% of
their acres, up from 1998. Rust was ranked as one of the three worst diseases by
Northarvest
respondents on 27% of their acres, slightly lower than in 1997 (Table 9).
Root rot was one of the three worst diseases on 66%
of Minnesota respondents' acres and on 26%
of North Dakota respondents' acres (Table 9), substantial increases from 1997 in root rot
ranking in both
states. The data for all other diseases are fairly similar for both states and do not vary
greatly from that of
the combined data for both states (Northarvest total).
| Respondents | Acres Reported b | |||
| Number | % | Number | % | |
| Minnesota | ||||
| Root Rot | 33 | 57.9 | 16,361 | 65.7 |
| White Mold | 30 | 52.6 | 12,718 | 51.1 |
| Bacterial Blight | 18 | 31.6 | 9,279 | 37.3 |
| Rust | 12 | 21.1 | 6,306 | 25.3 |
| Alternaria | 3 | 5.3 | 1,815 | 7.3 |
| None | 6 | 10.5 | 1,163 | 4.7 |
| North Dakota | ||||
| White Mold | 60 | 50.4 | 38,383 | 53.4 |
| Bacterial Blight | 30 | 25.2 | 21,671 | 30.2 |
| Rust | 34 | 28.6 | 20,230 | 28.2 |
| Root Rot | 27 | 22.7 | 18,864 | 26.3 |
| Alternaria | <5 | 4.2 | 4,015 | 5.6 |
| None | 34 |
28.6 |
18,266 |
25.4 |
| Northarvest | ||||
| White Mold | 90 | 51.1 | 51,101 | 52.8 |
| Root Rot | 60 | 34.1 | 35,225 | 36.4 |
| Bacterial Blight | 48 | 27.3 | 30,950 | |
| Rust | 46 | 26.1 | 26,536 | 27.4 |
| Alternaria | 8 | 4.5 | 5,830 | 6.0 |
| None | 40 | 22.7 | 19,429 | 20.1 |
a
Ranked as No. 1,2 or 3 disease problem by respondents.