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 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 very successful pre-emergence herbicide in banana in India a). Atrazine b). Alachlor c). Glyphosate d). Dalapon
Last Answer : b). Alachlor
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 : .Atrazine recommended to be applied as _________application in maize a). Pre-emergence b). Early post-emergence c). Post-emergence d). All of the above
Last Answer : d). All of the above
Description : .Atrazine recommended to be applied as ____________application in maize a). Pre-emergence b). Early post-emergence c). Post-emergence d).All of the above
Last Answer : .All of the above
Description : A post-emergence herbicide in Soy bean a). Pendimethalin 1.2 kg/ha b). Quazalofop – ethyl 60 g/ha c). Fluchloralin 0.9 kg/ha d). Thiobencarb 1.50 kg/ha
Last Answer : b). Quazalofop – ethyl 60 g/ha
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
Description : A herbicide applied to the soil before planting a crop is called a a). pre-emergence b). Post-emergence c). Pre-plant d). None
Last Answer : c). Pre-plant
Description : Which is Post emergence herbicide ? a). Propanil b). Fluchloralin c). Alachor d). Thiobencarb
Last Answer : a). Propanil
Description : Selective post-emergence herbicide a). 2,4-D b). Glyphosate c). Paraquat d). All
Last Answer : a). 2,4-D
Description : A herbicide both soil and foliage active a). 2,4-D b). Isoproturon c). Diuron d). All of these
Last Answer : d). All of these
Description : Besides isoproturon resistance in P. minor, other cases of herbicide resis tance reported in India are a). Poa annua b). Brachiaria ramosa c). Commelina sp d). None of the above
Last Answer : d). None of the above
Description : A weed escape/resist pre-emergence atrazine application in maize under mid hill conditions of Himachal Pradesh a). Ageratum conuzoides b). Commelina banghalensis c). Brachiaria ramosa d). All of the above
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
Last Answer : c). Both a and b
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 : . In which herbicide, micro-capsulation for mula is commercially available a). Alachlor b). Metachlor c). Both a and b d). Atrazine
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 : An important benzoic acid herbicide a).Dicamba b). 2,4-D c). Atrazine d). None of these
Last Answer : a).Dicamba
Description : A herbicide move through water conducting tissue a).Paraquat b). DSMA c). Glyphosate d). Atrazine
Last Answer : d). Atrazine
Description : A synergistic herbicide combination a). 2,4-D + Docamba b). 2,4-D + atrazine c). Atrazine + alachlor d). All
Last Answer : d). All
Description : Present day versatile herbicide to control difficult, perennial, broadleaved weeds and brushes in grasslands a). Alachlor b). Atrazine c). Picloram d). All
Last Answer : c). Picloram
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 : A broad-spectrum herbicide in groundnut a). Fluchloralin b). Atrazine c). Alachlor d). 2,4-D
Last Answer : a). Fluchloralin
Description : Which is the contact, non-selective and zero persistent herbicide in soils? a). Paraquat b). Atrazine c). 2,4-D d). Bromacil
Last Answer : a). Paraquat
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
Description : hich is the less toxic herbicide? a). Atrazine b). 2,4-D c). Simazine d). All of these
Description : . Which of these is not a broad spec trum herbicide a). Atrazine b). Paraquat c). Bromoxynil d). Glyphosate
Last Answer : c). Bromoxynil
Description : Which herbicide not belong to triazine group a).Atrazine b).Metribuzin c).Bentazon d).Ametryn
Last Answer : c).Bentazon
Description : Which herbicide is amino acid synthesis inhibitor a). Glyphosate b). 2,4-D c). MCPA d).Atrazine
Last Answer : a). Glyphosate
Description : Which herbicide is systemic and translocated type ? a). Atrazine b). Diuron c). Paraquat d). Glyphosate
Last Answer : d). Glyphosate
Description : Isoproturon to wheat is effective at a). 15 DAS b). 25-30 DAS c). 45- DAS d). 5 DAS
Last Answer : b). 25-30 DAS
Description : Herbicidal control for isoproturon resis tance Phalaris minor in wheat a). Sulfosulfuron 25 g/ha b). Clodinafop-propargyl 60 g/ha c). Penoxaden 50 g/ha d). All
Description : Phalaris minor has developed resistance to isoproturon in Punjab and Haryana in a). Rice b). Wheat c). Sugarcane d). Cotton
Last Answer : b). Wheat
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 : Early post-emergence treatment is followed in a). Potato b). Sugarcane c). Both a and b d). Rice
Description : The most commonly used herbicide in rub ber plantation a). Amitrole T b). Paraquat c). Both d). None
Last Answer : c). Both
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 : Herbicide commonly available as fumigant is a). Methyl bromide b). Metham c). Allyl alcohol d). All of these
Description : Commonly used wetting agent for herbicide spray in India a). Soap solution b). Teepol c). Uphar d). All of these
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 : 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 : The mode of action of Isoproturon is a). Root inhibitor b). Shoot inhibitor c). Photosynthesis inhibition d). Amino acid inhibition
Last Answer : c). Photosynthesis inhibition
Description : Mode of action of isoproturon a). PSII inhibition b). ACCase inhibition c). Glutamine synthatase inhibition d). Cell division inhibition
Last Answer : a). PSII inhibition
Description : Most widely used post-emergent herbicide in rice is (a) Stomp(b) Basaline (c) Atrazine (d) Propanil
Last Answer : (d) Propanil
Description : Alachlor is an effective pre-emergence her bicide in ______ a). Maize b). Soybean c). Both d). None
Description : How many times atrazine is more soluble than simazine? a). 1 b). 2 c). 4 d). 6
Last Answer : d). 6
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 : Chemical control of Parthenium hys terophorus a). Metsulfuron methyl b). Metribuzin c). Atrazine d). All
Description : Herbicidal control for Lantana a). Glyphosate b). Atrazine c). Pendimethalin d). Alachlor