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Biology, 05.05.2021 03:50 MrSnuffleBuns4277

D. maggots D. brown plant hopper
1.It is a chemical used to kill insects
B. insecticide C. molluscide D. bactericide
A. fungicide
2. These are insects that are active at night.
C. dragon fly
B. nocturnal
D. damsel fly
A. rodents
3. Which of the following methods is not appropriate to control golden kuhol?
A cultural method
B. chemical method
C. biological method D. use of resistant varieties
4. Which of the following insect pests is considered as the most serious pest of rice
because they attack the plant from seedling stage to maturity?
B. rice bugs
C. planthoppers
A. rice stemborer
5. When handling and using insecticides, always remember to
A follow recommended dosage
B. wear facemask
C. never smoke while spraying
D. all of the above
6. Which of the following methods is done by promoting the existence of natural
enemies to control rice pest?
A. biological control B. cultural method C. chemical method
D. physical control
7. The nymphs and adults of these insect feeds on grains during milking stage.
A rice bug
B. cutworm
c. army worm
8. These pest have been a persistent problem of rice growers, especially in areas
near forest and uncultivated lands.
A. rodents
B. golden kuhol C. green leaf hopper
D. cutworm
9. Which does not belong to the group?
A. spider
C. dragonfly
D. plant hopper
10. All are uses of economic threshold level except
A. prevent pest from reaching the economic injury level
B. economical
C. minimized unnecessary application of pesticide
D. pollutes the environment
11. Which of the following is not a nature of attack and damage of leaf folder?
A. Cuts off the growing plant.
B. Leaf is folded into tabular structures.
C. Longitudinal white transparent streaks on the leaf blade.
D. Heavily damaged leaves become dry.
12. When preparing liquid herbicides, remember to.
A. pour herbicides before the water.
B. pour herbicides and water at the same time.
C. never pour herbicide ahead of water.
D. pour water ahead of herbicide.
B. Wasp
13. What is the recommended dosage of most insecticides to be mixed up into 16
liters of water?
A. 7-10 tbsp/16 liters water B. 10-11 tbsp/16 liters water
C. 8-12 tbsp/16 liters water D. 10-13 tbsp/16 liters water
14. Which of the following is a damage cause by common army worm?
A. It cuts off the panicles.
B. It consumes the tissue of the leaves, a papery membrane on the upper epidermis
of the leaves develops.
C. Stunting & reduced tillers
D. Damaged plants appear in patches in the field.
15. These are necessary to determine if ETL has been reached to justify control
except one
A. Constant monitoring
B. use of seep nets
C. damage assessment
D. visit the field once a month​

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D. maggots D. brown plant hopper
1.It is a chemical used to kill insects
B. insecticide...

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