How do plants get sick?

The podcast explores plant health, diagnosing common issues in tomato and lemon plants. It highlights the importance of observing leaf color and soil moisture to identify problems like nutrient deficiencies, pest infestations (scale insects farmed by ants), and fungal diseases such as downy mildew. The hosts explain that yellow leaves can indicate insufficient sunlight or overwatering, while downy mildew thrives in wet, cool conditions. Listeners learn practical tips for plant check-ups, including examining leaves for discoloration or pests, assessing soil hydration by touch, and properly disposing of diseased leaves to prevent infection spread. The podcast also cautions against watering plants at night and emphasizes the need for well-draining soil.