Description : hich is the less toxic herbicide? a). Atrazine b). 2,4-D c). Simazine d). All of these
Last Answer : d). All of these
Description : Simazine or atrazine is added to glyphosate solution then glyphosate activity a). constant b). enhanced c). reduced d). None of the above
Last Answer : c). reduced
Description : Dehalogenation is the most common inacti vation reaction in which of the following a).Simazine b). Glyphosate c). Pendimethalin d). Bispyribac
Last Answer : a).Simazine
Description : Commonly used algicide a). Copper sulphate pentahydrate b). Simazine c). Diuron d). All
Last Answer : d). All
Description : The herbicide perform better in sunny days a). 2,4-D b). Paraquat c). Simazine d). All of these
Description : 2, 4-D, Simazine, Atrazine and Fluchloralin belongs to the selectivity group
Last Answer : Ans.Selective herbicides
Description : Most common herbicide used in maize ? a Atrazine b Simazine c Alachlor d Pendimethalin
Last Answer : b Simazine
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 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 synergistic herbicide combination a). 2,4-D + Docamba b). 2,4-D + atrazine c). Atrazine + alachlor 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 : a very successful pre-emergence herbicide in banana in India a). Atrazine b). Alachlor c). Glyphosate d). Dalapon
Last Answer : b). Alachlor
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 : 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 : 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 : . 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 : . Commonly used post-emergence herbicide in wheat a). 2,4-D b). Isoproturon c). Atrazine d). Both a and b
Last Answer : d). Both a and b
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 : 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
Last Answer : d). All of the above
Description : Herbicidal control for Lantana a). Glyphosate b). Atrazine c). Pendimethalin d). Alachlor
Last Answer : a). Glyphosate
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
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 : .____________ 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 : 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 these is not a broad spec trum herbicide a). Atrazine b). Paraquat c). Bromoxynil d). Glyphosate
Last Answer : c). Bromoxynil
Description : . Monocot are natural resistant to a). Triazine b). Pyrimidine c). Pyridine d). Atrazine
Last Answer : a). Triazine
Description : Which herbicide not belong to triazine group a).Atrazine b).Metribuzin c).Bentazon d).Ametryn
Last Answer : c).Bentazon
Description : The mode of action of Atrazine is a). Pigment inhibition b). Cell membrane disruption c). Seedling growth inhibition d). Photosynthesis inhibition
Last Answer : d). Photosynthesis inhibition
Description : Which herbicide is amino acid synthesis inhibitor a). Glyphosate b). 2,4-D c). MCPA d).Atrazine
Description : Which herbicide is systemic and translocated type ? a). Atrazine b). Diuron c). Paraquat d). Glyphosate
Last Answer : d). Glyphosate
Description : Symptoms where shoots/leaves are bleached white are caused due to a). Atrazine b). Glufosinate c). Tembotrione d). Fluazifop-p-butyl
Last Answer : c). Tembotrione
Description : Highly soluble herbicides like 2,4-D salt, Dalapon and TCA have to be avoided in which of the soil type a). Peat b). Red c). Clay d). Sandy
Last Answer : d). Sandy
Description : Atazine and Simazine belong to the chemical group
Last Answer : Ans.Triazines
Description : Which of the following statement is true a. Maize is monoecious b. Maize protein is zein c. Simazine herbicide is used in maize d. All of these
Last Answer : d. All of these
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 : If relative frequency, abundance and density values are 6, 5 and 4, respec tively, then summed dominance ratio is a). 15 b). 5 c). 7.5 d). 3
Last Answer : b). 5
Description : How many modes of action commer cialized between 1970 and 1985 a).6 b).9 c).10 d).12
Last Answer : d).12
Description : What is the chemical name of Dicamba ? a).3-amino-2,5-dichlorobenzoic acid b). 3,6-dichloro2-metoxybenzoic acid c). 2,3,6- trichlorobenzoic acid d). None of the above
Last Answer : b). 3,6-dichloro2-metoxybenzoic acid
Description : Which among the following bioherbi cide has control efficiency more than 90 per cent? a). Collego b). Devine c). CASST d). Biomal
Last Answer : a). Collego
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 : Which of the weeds are rapidly controlled by MCPA than 2,4-D a). Nutsedge b). Canada thistle c). Both d). None
Last Answer : c). Both
Description : In which of the weed the underground sys tem is located deeper than one metre? a). Cyperus rotundus b). Sorghum halepense c). Pluchea lanceolata d). All of these
Description : Other than ai, by which of the following phytotoxicity may occur a).solvents b).impurities’ c).high dose d).all
Last Answer : d).all
Description : Marginal cost is defined as____ a). Cost that arises when the quantity produced changes by one unit b). Cost of producing one more unit of a good c). Increase in cost that accompanies a unit in crease in output d). All the above
Last Answer : d). All the above