Why do pulses get worm infestations in summer?

Question

Learn why summer is the peak season for worm (weevil) infestations in pulses. The heat and humidity create the perfect breeding ground for pests.

Answer 1

Pulses are prone to worm infestations in summer due to higher temperatures and humidity, which accelerate the life cycle of storage pests like pulse beetles, leading to rapid reproduction and damage. Proper storage practices are crucial to prevent infestations.

Detailed Explanation:

Several factors contribute to pulse infestations during the summer months:

1. Temperature: Warmer temperatures significantly speed up the metabolic rate and reproductive cycle of storage pests, particularly pulse beetles (bruchids). These beetles lay their eggs on or inside the pulses, and the larvae then feed on the grains.

2. Humidity: Increased humidity levels create a favorable environment for the development of these pests. Moisture content in the pulses also increases, making them more susceptible to infestation.

3. Existing Infestation: If pulses are already slightly infested before summer, the warmer conditions will exacerbate the problem, leading to a rapid increase in the pest population.

4. Poor Storage Practices: Inadequate storage facilities, such as poorly sealed containers or damp storage areas, provide ideal conditions for pests to thrive.

5. Life Cycle: Pulse beetles can complete their life cycle in a relatively short period during summer, sometimes in as little as a few weeks, leading to multiple generations of pests infesting the stored pulses.

Pro Tip:

To prevent worm infestations, store pulses in airtight containers with a few dried neem leaves or bay leaves. These act as natural repellents. Also, consider freezing small quantities of pulses for a few days to kill any existing eggs or larvae before long-term storage.