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

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Section 4 • Integrated Insect and Rodent Pests Management<br />

Mass-rearing <strong>of</strong> Trichogramma sp. Parasitoid:<br />

• Corcyra eggs<br />

• Initial stock <strong>of</strong> Trichogramma sp<br />

• Oslo paper<br />

• Gum Arabic glue<br />

• Scissors<br />

• Fine strainer<br />

• Small paint brush<br />

• Parasitization container (cellophane 4 x 12)<br />

• Rubber band<br />

• Cutter<br />

• Masking tapes<br />

• Marking pen<br />

• Plastic tray<br />

• Plastic tray holder<br />

methodology<br />

• <strong>Field</strong> walks, hands-on, and brainstorming<br />

steps<br />

1. Divide participants in small groups and ask them to conduct field walks, observe, and interact<br />

with farmers on occurrence and severity <strong>of</strong> lepidopterous pest infestation on organicallygrown<br />

vegetables in learning and adjoining field. Interview other farmers and list down all<br />

observations related to:<br />

5 presence <strong>of</strong> egg masses, larvae, adults <strong>of</strong> lepidopterous pests;<br />

5 damage symptoms, and other signs <strong>of</strong> presence <strong>of</strong> lepidopterous pests;<br />

5 severity <strong>of</strong> infestation <strong>of</strong> lepidopterous pests;<br />

5 control methods employed against lepidopterous pests; and<br />

5 occurrence <strong>of</strong> other pests and diseases on organically grown vegetables.<br />

2. Go back to processing area; brainstorm in small groups and present output to big group. Conduct<br />

participatory discussion to allow sharing <strong>of</strong> experiences among participants and facilitators.<br />

Motivate farmers to share their best experiences in using non-chemical methods or approaches<br />

to manage lepidopterous pest infestation in organic vegetable production.<br />

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