Description : A very potent herbicide for the control of perennial, broad-leaved weed and brushes a). Atrazine b). 2,4-D c). Picloram d). Amitrole
Last Answer : c). Picloram
Description : Present day versatile herbicide to control difficult, perennial, broadleaved weeds and brushes in grasslands a). Alachlor b). Atrazine c). Picloram d). All
Description : A herbicide for controlling weeds in grassland and pastures a). 2,4-D b). Carfentrazone c). Metsulfuron-methyl d). All
Last Answer : d). All
Description : A broad-leaf herbicide in wheat a). Carfentrazone – ethyl 20 g/ha b). Metsulfuron – methyl 4 g/ha c). 2,4-D 500 g/ha d). All
Description : A broad-spectrum herbicide in groundnut a). Fluchloralin b). Atrazine c). Alachlor d). 2,4-D
Last Answer : a). Fluchloralin
Description : To manage grassy weed flora in barley which of the herbicides is to be applied a). Pendimethalin b). Isoproturon c). a and b d). Metsulfuron
Last Answer : c). a and b
Description : . In which herbicide, micro-capsulation for mula is commercially available a). Alachlor b). Metachlor c). Both a and b d). Atrazine
Last Answer : c). Both a and b
Description : Which of the following is a monocot weed but broad-leaved plant? a). Eichhornia crasipus b). Commelina banghalensis c). Cynnotis axillaris d). All of these
Last Answer : d). All of these
Description : A synergistic herbicide combination a). 2,4-D + Docamba b). 2,4-D + atrazine c). Atrazine + alachlor d). All
Description : a very successful pre-emergence herbicide in banana in India a). Atrazine b). Alachlor c). Glyphosate d). Dalapon
Last Answer : b). Alachlor
Description : Which herbicide is pre - plant applied herbicides ? a). Dalapon b). 2,4-D c). Alachlor d). All
Last Answer : a). Dalapon
Description : . Which is the widely used herbicide to con trol broadleaved weeds in winter grains? a). 2,4-D b). MCPA c). Both a and b d). Atrazine
Description : Chemical control of Parthenium hys terophorus a). Metsulfuron methyl b). Metribuzin c). Atrazine d). All
Description : The effective control of morphological similar Phalaris minor in wheat is achieved with a). 2,4-D b). Glyphosate c). Metsulfuron - methyl d). Isoproturon
Last Answer : d). Isoproturon
Description : Herbicide Antidotes a). protect crop plants b). harm crop plants c). Protect weeds d). Harm weeds
Last Answer : a). protect crop plants
Description : . Which of these is not a broad spec trum herbicide a). Atrazine b). Paraquat c). Bromoxynil d). Glyphosate
Last Answer : c). Bromoxynil
Description : Herbicidal control for Lantana a). Glyphosate b). Atrazine c). Pendimethalin d). Alachlor
Last Answer : a). Glyphosate
Description : Alachlor is an effective pre-emergence her bicide in ______ a). Maize b). Soybean c). Both d). None
Last Answer : c). Both
Description : . A pigment inhibitor a). Clomazone b). Alachlor c). Trifluralin d). All
Last Answer : a). Clomazone
Description : Mid morning application of which of the herbicides is better than its evening applica tion a). Butachlor b). Alachlor c). Glyphosate d). Paraquat
Last Answer : d). Paraquat
Description : Amount of Alachlor 50% EC for spray ing 12 ha maize field (given the dose 1.5 kg ai/ha) a). 36 kg b). 18 kg c). 54 kg d).12 kg
Last Answer : a). 36 kg
Description : Epinasty of cotton is used to measure qualitative assay of a). Atrazine b). 2,4-D c). Diuron d). Alachlor
Last Answer : b). 2,4-D
Description : Which of the following herbicides will be tightly bound to the soil? a). Trifluralin KOC(mL/g)= 7000 b). Paraquat KOC(mL/g)= 10,00,000 c). Glyphosate KOC(mL/g)= 24,000 d). Alachlor KOC(mL/g)= 124
Last Answer : b). Paraquat KOC(mL/g)= 10,00,000
Description : Which herbicide’s mode of action is root growth inhibition? a). Fluchloralin b). MCPA c). Glyphosate d). Alachlor
Last Answer : d). Alachlor
Description : What is the recommended rate of application of the herbicide metsulfuron in wheat? (a) 4g/ha (b) 10g/ha (c) 16g/ha (d) 20g/ha
Last Answer : (d) 20g/ha
Description : A herbicide requiring good spray coverage of all foliage for effective control of a weed population a).Paraquat b). Glyphosate c). Atrazine d). Isoproturon
Last Answer : a).Paraquat
Description : A concentrated band of a herbicide about 7 -10 cm below the soil surface is required to control a). Cyperus rotundus b). Convolvulus arvensis c). Oxalis d). All
Description : Herbicide which increase tuber size be sides weed control in potato a). EPTC b). Fluchloralin c). Pendimethalin d). Atrazine
Last Answer : a). EPTC
Description : Largest pre-emergence herbicide for weed control in citrus and pineapple orchards a). Atrazine b). Metham c). Allyl d). All
Last Answer : b). Metham
Description : A bio-herbicide to control Poa annua a). Smolder (Alternaria destruens) b). Woad Warrior (Puccinia thaspeos) c). Sarritor (Sclerotinia minor) d). Camperico (Xanthomonas campestris)
Last Answer : d). Camperico (Xanthomonas campestris)
Description : .____________ is a selective post – emergence herbicide used for weed control in rice a). Bispyribac-sodium b). Butachlor c). Pretilachlor d). Atrazine
Last Answer : a). Bispyribac-sodium
Description : .A test method using organism to deter mine the presence of herbicide effect is a). Herbicide analysis b). Bio assay c). Bio control d). None of these
Last Answer : b). Bio assay
Description : Herbicide Resistance can be managed through a). Stop to Use of herbicides with the same mechanism of action b). Use proactive weed control c). Use of post emergence herbicides with at least one mechanism of action d). All of the above
Last Answer : d). All of the above
Description : Which herbicide is used in aquatic weed control? a). Acrolein b). Delapon c). Diuron d). Picloram
Last Answer : a). Acrolein
Description : Butachlor has to be applied to control weeds in upland rice at a). Immediately after sowing b). 2 DAS c). 6-8 DAS d). 15 DAS
Last Answer : d). 15 DAS
Description : Biological weed control is not successful because a). Not possible to eradicate weed b). Bioagents are weed specific c). Controlled only introduced weeds d). All of these
Description : An eradication method of weed control a). Killing underground parts of weeds by tillage b). Using soil sterilants c). Repeated foliar application on perennial weeds d). All of these
Description : he earliest attempt to control weeds by herbicides was made in 1937 in Pun jab to control Carthamus oxyacantha by using a). Sulfosulfuron b). Atrazine c). Sodium arsenate d). 2,4-D
Last Answer : c). Sodium arsenate
Description : To manage mixed weed flora in barley which of the herbicides is to be applied a).2,4-D b). Isoproturon c). a and b as tank mix d). None of these
Last Answer : c). a and b as tank mix
Description : Competitive ability of the crops in decreas ing order a). barley>rye>wheat >oats b). oats>wheat> rye> barley c). rye>barley>oats> wheat d).wheat>oats>barley >rye
Last Answer : a). barley>rye>wheat >oats
Description : Consider the following statements: 1. The equatorial forests are evergreen. 2. The Mediterranean region has deciduous forests of broad-leaved trees. 3. Taiga forests are found in Kashmir. Which of the statements given above are correct? [NDA 2005] (a) 1 and 2 (b) 2 and 3 (c) 1 and 3 (d) 1, 2 and 3
Last Answer : Ans: (d)
Description : Deciduous forests have (a) Variety of grasses (b) Broad-leaved trees (c) narrow-leaved trees (d) Variety of crocodiles
Last Answer : Ans. ((b))
Description : Which type forests are also known as Tidal forests? a Tropical Dry Deciduous Forests b Mangrove Forests c Semi Evergreen Forestsd Sub-tropical broad-leaved forest e None of These
Last Answer : d Sub-tropical broad-leaved forest
Description : The most commonly used herbicide in rub ber plantation a). Amitrole T b). Paraquat c). Both d). None
Description : Application of which herbicide at 5-10% of emergence in potato is more common in India? a). Paraquat b). Diquat c). EPTC d). Both a and b
Last Answer : d). Both a and b
Description : Inhibition of electron transfer in photosys tem II is the reason for herbicide action in a). Nitriles b). Ureas c). Both a and b d). None
Last Answer : d). None
Description : . Herbicide deactivation of selectivity in plants is achieved by a). Herbicide metabolism b). Herbicide conjugation c). Both a and b d). None of these
Description : . Herbicide effectively controls Saccharum and Sorghum halepense only at pre flowering stage a). Diuron b). Atrazine c). Amitrole d). Both a and c
Last Answer : d). Both a and c
Description : . Commonly used post-emergence herbicide in wheat a). 2,4-D b). Isoproturon c). Atrazine d). Both a and b
Description : A herbicide both soil and foliage active a). 2,4-D b). Isoproturon c). Diuron d). All of these