Vegetable Crops Hotline A newsletter for commercial vegetable growers prepared by the Purdue University Cooperative Extension Service

Walnut allelopathy

Walnut allelopathy. Note wilting tomato plants in the foreground adjacent to walnut trees.

Figure 1. Walnut allelopathy. Note wilting tomato plants in the foreground adjacent to walnut trees.

Walnut allelopathy affecting tomato plants.

Figure 2. Walnut allelopathy affecting tomato plants.