Q.1. The first rule of weed prevention
a). Regular survey to identify new weeds
b). Destruction of weeds before they set seed
c). Clean seed
d). Clean farm equipments and irrigation water
Q.2. A companion crop
a). Hairy vetch
b). Winter rye
c). Cowpea
d). All
Q.3. A farming practice influencing weed floristic diversity
a). Fertility manipulation
b). Crop rotation
c). Intercropping
d). All
e). None
Q.4. Practices using direct radiant energy of the sun
a). Soil solarization
b). Micro-waves
c). Flaming
d). All
Q.5. Post-plant tillage helps in
a). Mixing of manures
b). Control of weeds
c). Soil and water conservation
d). None
e). All
Q.6. Flooding – a worldwide crop husbandry method of controlling weeds in
a). Maize
b). Sugarcane
c). Buckwheat
d). Rice
e).None
Q.7. Inter-culture with bullocks in standing water
a). Rice
b). Sorghum
c). Pearlmillet
d). all
Q.8.The first chemical shown to have herbicidal activity
a). 2,4-D
b). Bordeux mixture
c). Paraquat
d). 2,4- DB
Q.9. The herbicidal activity of 2,4-D at the first time was reported by
a). Hammer and Tukey (1944)
b). Zimmernam and Hitchcock (1942)
c). Nutman and Blackman (1945)
d). None
Q.10. a latest herbicide family
a). Triazines
b). Dinitroanilines
c). Sulfonyl ureas
d). Growth regulators
Q.11. The effective control of morphological similar Phalaris minor in wheat is achieved with
a). 2,4-D
b). Glyphosate
c). Metsulfuron – methyl
d). Isoproturon
Q.12. Which of the following gives effective control of Phalaris minor in wheat
a). Hand weeding
b). Inter-cultivation
c). Flaming
d). Clodinafop-proparygyl
Q.13. Integrated weed management practices that
a). Enhance crop competitive ability
b). Decrease weeds ability to reduce yield
c). Practices that eliminate weeds from an area
d). Both a and b
e). Both a and c
Q.14. The first phase of IWM as per Sheley
a). Integrated use of different methods
b). Planning and implementation
c). Inventorization
d). Monitoring and evaluation
Q.15. Selective post-emergence herbicide
a). 2,4-D
b). Glyphosate
c). Paraquat
d). All
Q.16. A non-selective contact herbicide
a). Glyphosate
b). Paraquat
c). 2,4-D
d). None
Q.17. A soil applied herbicide
a). Glyphosate
b). Paraquat
c). 2,4-DB
d). Fluchloralin
Q.18. A ‘Natural amongst the following
a). Devine
b). Glyphosate
c). Potassium chloride
d). 2,4-D
Q.19. A mico-herbicide
a). Bt
b). Collago
c). NPV
d). Zygogramma
Q.20. Application of bio-herbicides
a). Aerial sprays
b). Cut and paste
c). Soil application
d). All
Q.21. Dab system is successful practical strategy in limiting future weed infestation in
a). Xerophytic environments
b). Rainfed areas
c). Water-logged areas
d). Irrigated areas
Q.22. Flaming and steaming are successful practical weed control tools in
a). Asian countries
b). Western countries
c). African countries
d). Japan
Q.23. The practice that directly hit soil weed seed bank in minimizing future weed infestation
a). Microwave irradiation
b). Soil solarization
c). Stale seed bed
d). All
e). None
Q.24. A practice where one or two flushes of weeds are destroyed before seeding a crop
a). Cheeling
b). Stale seed bed
c). Searing
d). None
Q.25. A practice that does not necessarily involve tillage
a). Summer ploughing/hot weather cultivation
b). Stale seed bed
c). Soil solarization
d). None
Q.26. Soil solarization increases soil temperature by
a). 10-12 °C
b). 3-4 °C
c). 15-16 °C
d). 20-22 °C
Q.27. The condition intensifies the spread of perennial propagules of weeds after being exposed by tillage
a). Hot weather
b). Rainfall
c). High light intensity
d). High wind
Q.28. Which is the ‘odd one’ based on mimicry
a). Wild rice in rice
b). Wild sorghum in sorghum
c). Wild sugarcane in sugarcane
d). Itch grass in upland rice
Q.29. C4 weed
a). Avena fatua
b). Lolium temulentum
c). Sorghum halepense
d). Phalaris minor
Q.30. The environment friendly weed control method
a). Biological
b). Physical
c). Chemical
d). None
