23 Questions
What type of rice pest causes whitish longitudinal streaks on leaves, leading to scorching and leaf drying?
Paddy bug
Which management technique is recommended to avoid close planting and control the application of nitrogen and Potassic fertilizers in rice cultivation?
Passing a thorny brush across the crop
What is the main cause of diseases in rice according to the text?
Fungi
Which pest causes infected rice kernels to turn into 'smut balls' first appearing orange and later turning olive-green to brown?
False smut fungus
What is the recommended disease management technique for Rice Caseworm infestation?
Use of sclerotia free seeds
Which pest causes initial white to gray-green lesions on rice shoots, which may later enlarge and kill entire leaves?
Rice blast
What is a recommended cultural practice for managing Yellow Stem Borer in rice cultivation?
Growth of resistant varieties
Which rice disease is characterized by green panicle branches up to the infected grain with two-toned grain having brown discoloration on the lower third to half of the grain?
Bacterial Panicle Blight Burkholderia glumae
What is a recommended method for managing Bacterial Panicle Blight Burkholderia glumae?
Avoiding excessive nitrogen rates
Which symptom is characteristic of Leaf Blight Xanthomonas oryzae?
Yellow or white strips in the leaf margins
What is a key disease management strategy for Ragged Stunt in rice?
Chemical control of brown plant hoppers
Which rice disease is spread by zig-zag and green plant hoppers and affects all growth stages of the rice plant?
Tungro Virus
What is a recommended approach for managing Brown Spot Helminthosporium oryzae in rice cultivation?
Proper soil preparation
What is a common symptom of a rice plant infested with Paddy bug Leptocoriza acuta?
Unfilled grains at panicle stage
Which management technique is specifically recommended for controlling Yellow Stem Borer Scirpophaga incertulas?
Flooding to submerge the infested field for 2 days
What is a distinctive symptom caused by Rice Caseworm Nymphula depunctalis on rice plants?
Cutting off leaf tips to make leaf cases
Which of the following is a commonly used biological control method for managing pests in rice cultivation?
Use of parasitoids and natural enemies
What is the recommended action for managing Rice Leaf Folder Cnapholocrocis medinalis?
Planting at correct time and avoiding late planting
Which practice is NOT effective in controlling Yellow Stem Borer Scirpophaga incertulas?
Growing early maturity rice variety as trap crops
Which symptom is typically NOT associated with an infestation by Yellow Stem Borer Scirpophaga incertulas?
Stunting plant growth with excessive tillering
What is a key distinguishing characteristic of Rice Caseworm Nymphula depunctalis?
Cutting off leaf tips to make leaf cases
In managing Paddy bug Leptocoriza acuta, which technique may not be effective?
Early planting and use of late-maturing cultivars
Which management technique is not advisable for controlling Rice Leaf Folder Cnapholocrocis medinalis?
Use foliar treatments of carbamate insecticides.
Test your knowledge on major pests and pathogens affecting rice crops, including the Brown Plant Hopper and its symptoms. Learn about management strategies to mitigate damages from these pests and diseases.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
