Keycheck7 Pest Management

How to apply Metarhizium

Characteristics of Metarhizium-infected RBB Metarhizium can reduce about 30-70% of the rice black bug (RBB) population in 7 days. In the early stages of infection, RBB may show ill effects such as cessation of feeding and weakness. Metarhizium mummifies the RBB and white conidiophores grow out through the cuticle within 24 hours. Profuse green spores […]

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How to isolate Metarhizium from infected RBB

Keycheck7 Pest Management

To isolate: 1. Collect Metarhizium-infected RBB from the field. 2. Prepare plated Potato Dextrose Agar. Mark the bottom of the plate as your guide for inoculation. 3. Using the tip of the inoculating needle, slightly touch the spores on the body surface of the infected insect and prick it into the marked portion of the […]

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How to manage Golden Apple Snails

Keycheck7 Pest Management

Golden apple snail (GAS) is destructive in the first 15 days after transplanting (DAT) and first 4-30 days after direc-seeding. High yield losses can occur if GAS is not managed properly. GAS devour the base of young seedlings. They can even consume the young plants in a whole paddy overnight. Signs of GAS damage are […]

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How to manage rats

Keycheck7 Pest Management

Rats can seriously damage rice and cause losses of 5% to 60%, or even 100% at seedbed. They are destructive in all stages of rice growth, reaching its peak at grain maturity stage. Rats are difficult to manage because they reproduce rapidly in high numbers and their life span is long. Rats can be managed […]

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How to manage Stem Borers

Keycheck7 Pest Management

1. Know the population peak of yellow stem borer in your place and avoid planting when stem borer population is high. At PhilRice CES, for example, the population peaks of stem borers are from April to May and from October to December. Hence, planting should be done in December-January for the dry season and June-July […]

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How to mass produce Metarhizium anisopliae

Keycheck7 Pest Management

1. Prepare materials for mass production of Metarhizium anisopliae Equipment: 1. Pressure cooker/autoclave 2. Inoculating chamber/Laminar Flow Hood Supplies: Artificial culture media Polypropylene plastic bag (9 x 16) or any heat-resistant plastic bag Inoculating loop/inoculating needle Glass syringe, 10 ml (dispenser) Detergent (all-purpose) Ethyl alcohol Denatured alcohol Glass stirring rod Chlorox Cotton Rubber bands Alcohol […]

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Bacterial Leaf Streak

Keycheck7 Pest Management

Local name: naggapula (Ilonggo) Causal organism: Xanthomonas oryzae p.v. oryzicola (Fang et al.) Swings et al. Where to find: On leaves Symptoms: fine translucent streaks that enlarge lengthwise; coalesce (merging lesions ) form large brown affected leaves; later stage, entire leaf turns brown and withers Susceptible stage: tillering to maturity Note: wind-borne, present in lowland […]

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Brown Planthopper

Keycheck7 Pest Management

Tagalog names: kayumangging hanip, kayumangging ngusong kabayo Identifying marks: Adults are 2.5-3.0 mm long, winged, or without wings. The legs are hairless and the hind leg has a large, mobile outgrowth. Where to find: Rainfed and irrigated wetland fields are preferred. It is rare in upland rice conditions. Direct-sown fields are more prone to heavy […]

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Management options for common rice diseases

Keycheck7 Pest Management

Disease management should be integrated into the crop production system using diverse approaches (Tables 1-3). Table 1. Management options for common viral diseases on rice DISEASES MANAGEMENT OPTIONS Tungro Rogue or pull out diseased plants during the first six weeks of crop growth and properly dispose of immediately to remove the source of inoculums Plant […]

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Rice Black Bug (RBB)

Keycheck7 Pest Management

Rice Black Bug (RBB) Rice Black Bug Scientific name: Scotinophara coarctata (Fabricus) Local name: itim na atangya Sap feeding insect Attack rice plants in irrigated areas in almost all stages of growth Most destructive from maximum tillering to ripening In rainfed areas, damage by this pest can result to severe/complete crop loss during heavy infestation […]

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