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

How long will this exercise take?
222
Field Guide of Discovery-based Exercises for Organic Vegetable Production
• Thirty minutes to one hour for field walks, observations (e.g., presence of egg masses, larvae,
adults, damage symptoms, and other signs of presence), and interaction with farmers on
occurrence and severity of lepidopterous pest infestation on organically-grown vegetables in
learning and adjoining field;
• One to two hours hands-on (e.g., 1 st 2 weeks before planting) on collection of Trichogramma
and Corcyra initial stocks and preparation of mass-rearing equipment;
• One to two hours weekly hands-on on actual mass-production of Corcyra eggs (e.g., 1 st 4 weeks
after planting) and Trichogramma pupae (e.g., 4 th week after planting); and
• Thirty minutes to one hour weekly brainstorming session in processing area.
• This exercise will require one month and two weeks from collection of Trichogramma and
Corcyra initial stocks and preparation of mass-rearing equipment.
learning objectives
• To make participants aware of and understand the innovative practices for village-type massproduction
and use of Trichogramma to manage lepidopterous pests of organically-grown
vegetables; and
• To learn and do village-type mass-production and use of Trichogramma to manage lepidopterous
pests of organically-grown vegetables.
materials
Mass-rearing of Corcyra cephalonica Host:
• Rearing box
• Pre-emergence cage
• Emergence cage rack
• Moth collection box
• Egg laying box
• Plastic cups
• Strainer
• Petri dish
• Feather duster
• Corn bran rearing media
• Mask
• Paint brush