During June and July, crop scouting for the
ascochyta/mycosphaerella complex in field pea is critical for assessing risk
and gauging the need for and timing of an in-crop fungicide application. However, late season crop scouting is also
important as it can be used to assess the prevalence, severity and impact of
these disease issues. Where unsprayed
check strips or areas have been left in the field, late season assessments can
be used to assess the impact and benefit of spraying in relation to leaf
disease management and crop productivity.
It is critical to assess end-of-season leaf spot levels at
the correct growth stage although the same scale can be used at early flowering
to gauge disease development and the need to apply fungicide. Assessment of leaf diseases becomes very
difficult if plants have started to ripen.
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| Symptoms of mycosphaerella/ascochyta complex
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| Symptoms of mycosphaerella/ascochyta complex |
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| Symptoms of mycosphaerella/ascochyta complex |
Access the latest survey protocols and scouting information
for the ascochyta/mycosphaerella complex for field pea at:
Ascochyta/mycosphaerella survey protocols
Ascochyta/mycosphaerella scouting information
Ascochyta/mycosphaerella disease info card