Rainy-Season-Pest-Advisory-in-Region-I.pptx

Pest control

1. Rainy Season Pest Advisory in Region I MARIVIC G. BEGONIA ILD-Regional Crop Protection Center I Department of Agriculture – Regional Field Office I 09998639928

2. Bacterial Leaf Blight = 70% Yield Loss Bacterial Leaf Streak = 8 -17%

3. Bacterial Leaf Blight = It can result to poor grain specially if infection occurs at booting stage. Damages Bacterial Leaf Streak = It can lead to the reduction of grain weight.

4. Bacterial Leaf Blight Rainy Season Rice Diseases Bacterial Leaf Streak Post-Typhoon Rice Diseases

5. Bacterial Leaf Blight ( Xanthomonas oryzae pv . oryzae ) Symptoms: Wilting of seedlings ( Kresek ) Appearance of bacterial ooze that looks like a milky or opaque dewdrop on young lesions early in the morning Drying/yellowing of leaf tips and margins

6. Bacterial Leaf Streak ( Xanthomonas oryzae pv . oryzicola ) Symptoms: Presence of small, water-soaked, linear lesions along the veins of the leaves. The streaks in the leaves become light brown to yellowish gray. Translucent lesions. With yellow droplets of bacterial ooze on humid conditions. In case of severe infections, the leaves become dark brown, and eventually die .

7. Triggering Conditions Susceptible variety Excessive application of Nitrogen may increase disease incidence Damp, moist and windy conditions Strong winds, typhoon, too much water Prolonged drought followed by heavy rains Close plant spacing

8. Management Options Plant resistant varieties Thorough land preparation Practice synchronous planting Ensure good drainage Avoid excessive application of Nitrogen fertilizer Practice fallow period Maintain field sanitation Last option, apply registered Copper-based pesticide.

9. Department of Agriculture – Regional Field Office (DA-RFO) Integrated Laboratories Division (ILD – Regional Crop Protection Center (RCPC) Tel. No.: [phone]; 09998639928 e mail ad: [email protected] . For inquiries & other information

10. Dios Ti Agngina