Description : Each year an awareness week is or ganized by DWR Jabalpur, an ICAR In stitute in reference to which of the weed a). Lantana camara b). Chromolaena adenophorum c). Parthenium hysterophorus d). Imperata cylindrica
Last Answer : c). Parthenium hysterophorus
Description : A weed brought as ornamental a). Water hyacinth b). Lantana c). Both a and b d). None of these
Last Answer : c). Both a and b
Description : VELGO is a bioherbicide used against a). Echinochloa b). Parthenium c). Cenchrus d). Abutilon
Last Answer : d). Abutilon
Description : If Echinochloa falls in frequency class ‘E’, the weed community is said to be a). Contiguous b). Heterogenous c). Homogenous d). Random
Last Answer : c). Homogenous
Description : If the count of Echinochloa in weedy check is 70 and that in a treatment 25/m2, weed control efficiency will be a). 54.3% b). 64.3% c). 73.4% d). 79.6%
Last Answer : b). 64.3%
Description : A multi-season annual weed a). Echinochloa colona b). Eclipta alba c). Phyllanthus nirurii d). All of these
Last Answer : d). All of these
Description : . Mimicry weed in rice field is a). Wild rice (Oryza sativa var fatua) b). Echinochloa colona c). Echinochloa crusgalli d). All of these
Description : A dominant weed of puddle paddy soil a). Echinochloa b). Caesulina c). Eclipta sp d). All of these
Description : The most common weed in wheat a). Avena ludoviciana b). Echinochloa colona c). Panicum dichotomiflorum d). Eleusine indica
Last Answer : a). Avena ludoviciana
Description : Weed species which has nematicidal prop erty a). Crotolaria b). Parthenium c). Eichhornia sp d). All of these
Description : A troublesome weed of water body a). Water lilly b). Lotus (Nelumbo sp) c). Water hyacinth d). All the above
Last Answer : d). All the above
Description : . A weed acting as a satellite weed a). Avena fatua b). Cuscuta sp c). Cichorium sp d). All of these
Description : The weed producing smallest seed a). Cuscuta sp b). Xanthium sp c). Amaranthus sp d). Commelina sp
Last Answer : a). Cuscuta sp
Description : Eradication is possible in following weed situations a). Ageratum conyzoides b). Phalaris minor c). Parthenium hysterophorus d). Lantana
Last Answer : d). Lantana
Description : Weed eradication is rare but practiced in a). Lantana b). Saccharum sp c). Striga sp d). All of these
Description : A simple perennial weed a). Ipomoea carnea b). Lantana camara c). Both a and b d). None of these
Description : A recent noxious weed of Tamil Nadu a). Wild brinjal b). Striga c). Lantana d). Cuscutta
Last Answer : a). Wild brinjal
Description : Which of the following is a brush weed a). Lantana b). Propsopis (Mesquite) c). Zizyphus rotundifolia d). All of these
Description : Which of the following weed is used in cot tage industry for making rope and thatch material? a). Typha b). Saccharum sp c). Both a and b d). Lantana
Description : Weed responsible for forest fire is a). Aligator weed b). Sorghum halepense c). Lantana d). Amaranthus
Last Answer : c). Lantana
Description : Besides NA and R 25788, other safeners to counteract the effect of carbamate herbi cide is a). CGA 43089 b). CGA 92194 c). Mon 4606 d). All of these
Description : Typically pre-plant soil incorporated herbi cide a). Fluchloralin b). Trifluralin c). EPTC d). All of these
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 : Out of 50 quadrats studied, if Echinochloa is found in 26 quadrats, its frequency of occurrence would be a). 13% b). 26% c). 52% d). 68%
Last Answer : c). 52%
Description : Ammonium nitrate acts as chemical stimu lant to control a). Wild oats b). Eleusine indica c). Echinochloa colona d). All of these
Description : CASST is a bio herbicide used to con trol a). Cenchrus b). Cassia obtusifolia c). Echinochloa d). Eichhornia
Last Answer : b). Cassia obtusifolia
Description : Which of the following weeds has been found effective in checking water pollution caused by industrial affluents? (1) Water hyacinth (2) Elephant Grass (3) Parthenium (4) Both (2) and (3)
Last Answer : (1) Water hyacinth Explanation: Plants that are resistant to crude oil toxicity such as black poplar and willows, as well as miscanthus grass (elephant grass) have been found to ... oliefera seeds and Parthenium hysterophorus plants are effective for the removal of industrial p011utants in water.
Description : Which of the following weeds has been found useful to check water pollution caused by industrial affluents? (1) Parthenium (2) Elephant grass (3) Water hyacinth (4) Both (1) and (2) above
Last Answer : (3) Water hyacinth Explanation: Around the world, there is an increasing trend in areas of land, surface waters and groundwater affected by contamination from industrial, military and agricultural activities due to either ignorance, lack of vision, or carelessness.
Last Answer : Both (2) and (3)
Description : Which of the following weeds has been found useful to check water pollution caused by industrial affluents ? (1) Parthenium (2) Elephant grass (3) Water hyacinth (4) Both (1) and (2) above
Last Answer : Water hyacinth
Description : Parthenium is a very serious problem in a). Tamil Nadu b). Rajesthan c). Jammu and Kashmir d). Maharastra
Last Answer : d). Maharastra
Description : Chemical control of Parthenium hys terophorus a). Metsulfuron methyl b). Metribuzin c). Atrazine d). All
Last Answer : d). All
Description : Native of water hyacinth is a). Australia b). Brazil c). India d). China
Last Answer : b). Brazil
Description : Trap crop for Cuscuta sp a). Small grains b). Chickpea c). Mustard d). All
Description : A parasite in lucerne a). Cuscuta sp b). Orobanche sp c). Striga sp d). All of these
Description : 256.Which bioherbicide is a liquid formula tion of spores used to control Cuscuta chinensis and Cuscuta australis? a). Smolder b). LuBao c). ABG-5003 d). a & b
Last Answer : d). a & b
Description : .Collego was developed to control a). Aeschynomene indica b). Eichhornia c). Cuscuta d). Morrenia odorata
Last Answer : a). Aeschynomene indica
Description : Growth of the weed is reduced due to root exudates of maize a). Chenopodium album b). Amaranthus retroflexus c). Both a and b d). None of these
Description : Factors affecting weed-crop interference are a). Period of weed growth b). Soil and climate influence c). Plant species effects d). All
Description : Which one of the following pairs of organisms are exotic species introduced in India? (a) Lantana camara, water hyacinth (b) Water hyacinth, Prosopis cinereria (c) Nile perch, Ficus religiosa (d) Ficus religiosa, Lantana camara
Last Answer : (a) Lantana camara, water hyacinth
Description : Insect to control Lantana a). Ophimoyia sp (seed fly) b). Teleonania sp (Lace bug) c). Theola sp (Butterfly) d). All of these
Description : he bird which disperses Lantana camara a). Indian Myha b). Chinese turtle dove c). Parrot d). Both a and b
Last Answer : d). Both a and b
Description : Three-phased integrated technology including cutting, spray of glyphosate and land utilization as per its capability for the management of Lantana camara was developed at a). Jabalpur, MP b). Palampur, HP c). Jaipur, Rajesthan d). Hisar, Haryana
Last Answer : b). Palampur, HP
Description : Herbicidal control for Lantana a). Glyphosate b). Atrazine c). Pendimethalin d). Alachlor
Last Answer : a). Glyphosate
Description : Herbicide residue in soil are undesirable because of a). Injury to sensitive crops b). Accumulate in the produce c). Inhibit soil micro-organisma d). All
Description : Which herbicide group inhibit the lipid synthesis? a). Cyclohexanedione b). Acetanilides c). Uracils d). Nitriles
Last Answer : a). Cyclohexanedione
Description : Aquatic weed act as alternate host and vectors of malaria, yellow and dengue fever is a). Water lettuce b). Salvinia c). Alligator weed d). All of these
Description : 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
Last Answer : d). Irrigated areas
Description : The weed that causes Asthma is— (A) Hirankhuri (B) Bathua (C) Parthenium (D) Krishna Neel
Last Answer : (C) Parthenium
Description : The most important weed against which eradication measures would be taken on war footings is (a) Eichhornia (b) Dactylis (c) Parthenium (d) Ageratum
Last Answer : (c) Parthenium