Disease Management
Dictates:
Treatment options
chemical, cultural, etc.
Host range
Ability to cause disease
Amount of damage
Geographic range
P. pini
more common
aggressive
10x less sensitive to mefenoxam
P. cactorum
less common
less aggressive
4x less sensitive to phosphorous acid
Nursery A
Nursery B
Nursery C
65% P. irregulare
53% P. ‘vipa’
47% P. dissotocum
10% P. torulosum
15% P. aff. macrosporum
14% P. ultimum
6% P. aff. macrosporum
10% P. irregulare
11% P. aff. spiculum
6% P. irregulare type III
9% P. sylvaticum
8% P. sylvaticum
5% P. aff. spiculum
8% P. ultimum
7% P. aff. macrosporum
92%
95%
87%
Nursery A
Nursery B
Nursery C
58% F. commune
63% F. commune
5% F. commune
42% F. oxysporum
37% F. oxysporum
39% F. oxysporum
0% F. proliferatum
0% F. proliferatum
56% F. proliferatum
100%
100%
100%