9th, made fence on the 70 today. Pa, Jno, Frank & I did. Mother is very sick tonight. Frank went after Dr.G.E.Thomas. It hasn’t rained for over 2 weeks & some corn is firing.
From The Bulletin, Pest Management and Crop Development Information for Illinois:
Leaf firing–loss of chlorophyll and proteins, with yellowing and eventual death of leaf tissue–is an indicator of fairly serious drought. Firing starts in the leaves at the bottom of the plant and moves up with increasing dryness. Although this may allow the plant to better provide nutrients to the upper leaves, firing is irreversible, and it reduces yield in direct proportion to the extent to which it decreases the ability of the plant to maintain light interception and photosynthesis during grainfill.
