Field Guide of Discovery-based Exercises for - Aseanipm ...

Section 4 • Integrated Insect and Rodent Pests Management
learning objectives
• To make participants aware of and understand that spraying with chili can be a practical control
method against relatively low to moderate webworm infestation in organically-grown crucifers;
and
• To learn and do hands-on of spraying chili solution against webworms when relatively low to
moderate infestation in organically-grown crucifers is observed in learning field.
materials
• Office supplies (e.g., notebooks, ball pens, marking pens, crayons, Manila papers);
• Other supplies (e.g., chili or hot peppers, measuring cup, sprayer, detergent, and water); and
• Organically-grown crucifers in learning and adjoining fields showing relatively low to moderate
webworm infestation.
methodology
• Field walks, hands-on, and brainstorming
steps
1. Divide participants in small groups and ask them to conduct field walks and observe organicallygrown
crucifers showing low to moderate webworm infestation in learning and adjoining fields.
Take note of feeding characteristics of pests. Interview other farmers, if necessary. List down
all observations related to pest occurrence, crops or weeds infested, degree and characteristic
of damage, etc.
2. Facilitate each farmer to do hands-on of spraying chili against webworms when relatively low to
moderate infestation are observed on organically-grown crucifers in learning field, as follows:
5 Look for localized areas where webworms are concentrated;
5 Take note of characteristic damage, plant part damaged, relative density, etc.;
5 If possible, estimate degree of pest infestation per plot;
5 Prepare chili solution by pounding and diluting 20 ripe chili fruits per liter of water. Add
one spoonful of detergent (e.g., Perla soap) per litter of chili solution;
5 Perform localized spraying of chili solution at relatively low to moderate webworm
infestation levels;
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