Physiological leaf roll is a common indicator of heat stress, as shown here. However, if leaves are unhealthy and yellowing, it may signal tomato yellow leaf curl virus.
July 5, 2025
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July 5, 2025 1:05 a.m.
Abiotic vs. biotic: How to decode problems in your garden
Pests and diseases are biotic factors that impact an ecosystem and its organisms. Examples: those deer mowing your hostas to the ground, along with the cabbage worms chomping your kale. Abiotic factors, the non-living components, including physical, chemical, and other factors, can significantly impact a garden’s health just as much as pests and diseases can.