How do I monitor and assess pest populations in my urban garden?
With my background in gardening amidst the orange groves of Tunisia, I've always relied on keen observation to manage my plants. However, in my Parisian balcony garden, I'm finding it challenging to effectively monitor pest populations and their impact on my citrus trees. I've tried keeping a journal of observations, but I'm unsure about the best metrics or indicators to focus on. My garden setup includes limited space and a variety of plants, which complicates the monitoring process. What strategies or tools do you recommend for assessing pest populations over time? Are there specific signs I should look for that might indicate when to intervene with IPM practices?