Description : Herbicides are less effective on weeds under which of the soil condition a). Field capacity b). Saturated c). Both a and b d). Dry
Last Answer : d). Dry
Description : The type of soils which require higher dose of herbicides to be effective is a). Inceptisols b). Histosols c). Oxisols d). Ultisols
Last Answer : b). Histosols
Description : which of the following statements about pesticides and herbicides is not true? -General Knowledge
Last Answer : Once the pesticides and herbicides break down, they are no longer harmful, is not true about pesticides and herbicides.
Description : How do hormonal herbicides function? -Biology
Last Answer : answer:
Description : When did crops become resistant to herbicides?
Last Answer : The years since the 1940s describe the timeline for cropsbecoming resistant to herbicides. Research indicates that herbicideresistance is not a new phenomenon. Farm crop and garden edible andornamental herbicide resistance ... to invent andre-examine pest controls for going on 70 years, as of 2018.
Description : Was herbicides or agent orange used at Clark AFB Philippines in 1968 and 1969?
Last Answer : Need answer
Description : What are the alternatives to using chemical herbicides?
Last Answer : Corn gluten is the first alternative that comes to mind. Spread it in the fall or the spring but not when planting seed. It prevents weeds from germinating. The other alternative is to pull weeds by hand. However, this is very strenuous work and will be very prohibitive if you have a very big yard.
Description : Herbicides are not used in dust formulation because of
Last Answer : Ans.Drifting hazards
Description : The example of POST herbicides are
Last Answer : Ans.2, 4-D, Diquat, Paraquat, Isoproturon, Fenoxaprop-ethyl, Sulfosulfuron, Chlorimuronethyl etc.
Description : The herbicides applied 30-40 DAS are comes under
Last Answer : Ans.Post-emergence herbicides.
Description : The example of PRE herbicides are
Last Answer : Ans.Simazine, Atrazin, Alachlor, Butachlor, Nitrofen, Pendimethalin etc.
Description : The herbicides applied 1-4 days after sowing are comes under
Last Answer : Ans.Pre-emergence herbicides.
Description : The example of PPI herbicides are
Last Answer : Ans.Fluchloralin, Alachlor, Trifluralin etc.
Description : The herbicides applied 1 day before sowing/planting or just are comes under
Last Answer : Ans.Pre-plant incorporated (PPI) herbicides.
Description : Most commonly used herbicides in sugarcane are
Last Answer : Ans.Simazine, Atrazine and Alachlor
Description : Contraceptive pills in the market contain – (1) steroid-hormones (2) inorganic compounds (3) herbicides (4) antibiotics
Last Answer : (1) steroid-hormones Explanation: Contraceptive, pill: Commonly called "the pill," combined oral contraceptives are the most commonly used form of reversible birth control in the United States.
Description : Main objective of production/use of herbicide resistant GM crops is to (a) encourage eco-friendly herbicides (b) reduce herbicide accumulation in food articles for health safety (c) eliminate weeds from ... the use of manual labour (d) eliminate weeds from the field without the use of herbicides
Last Answer : (c) eliminate weeds from the field without the use of manual labour
Description : The crops engineered for glyphosate are resistant/ tolerant to (a) insects (b) herbicides (c) fungi (d) bacteria.
Last Answer : (b) herbicides
Description : Auxins as herbicides are supposed to be: a. Non toxic to animals and human beings b. Highly selective c. Exert their action at extremely low concentration d. All of the above
Last Answer : All of the above
Description : To reduce the crop-weed com-petition, at what stage are the herbicides used? (a) At germination (b) At tillering (c) At ear emergence (d) After first irrigation
Last Answer : (d) After first irrigation
Description : Herbicides are less use in Horse gram cultivation... a Crop is renumerative b Crop is less renumerative c Sturdy crop d None of these
Last Answer : b Crop is less renumerative
Description : Differentiate between herbicides and pesticides?
Last Answer : Herbicides are weed killing chemicals and pesticides are insect killing chemicals which are used to eliminate the crop enemies (weed and insects) such chemicals also cause damage to the crop plants.
Description : Can yard trimmings treated with pesticides and herbicides like “Weed & Feed” be put in the compost? What happens to them in the compost pile?
Last Answer : Most of these chemicals break down fairly well when fully composted (one year). But to be safe, don’t use the finished compost on food crops. The best plan is to avoid using these toxic products in the first place.
Description : Application of Herbicides to remove …………… a. Weeds c . Disease b. Pest. d. Plant
Last Answer : Weeds
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 : Which of the herbicides can be used in gram crop? a). Pendimethalin b). Metolachlor c). Fluchloralin d). All
Last Answer : d). All
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 : Prohexadione calcium a plant growth regu lator affect efficacy of which of the following herbicides in peanut a). acifluorfen b). bentazon c). imazethapyr d). None
Last Answer : d). None
Description : Herbicides inhibiting amino acid synthesis a). Imadazolinone b). Sulfonamide c). aminoacid derivatives d). all
Last Answer : d). all
Description : Growth regulating herbicides that act simi lar to that of endogenous auxin (IAA) a). Benzoic acid b). pyridine carboxylic acid c). quinoline carboxylic acid d). All
Description : When the weeds are under pressure, the herbicides enter the leaf a). less readily b). more readily c). do not enter d). entry not affected
Last Answer : a). less readily
Description : Which of the following pre-emergence her bicides can be applied with herbicides that have efficacy with emerged weeds a). Chloracitamide b). Thiocarbamates c). Dinitroanilines d). All
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 : Herbicides disrupting cell membranes a). Bipyridilliums b). diphenylethers c). Both d). Ureas
Last Answer : c). Both
Description : Application of organophosphorus group of pesticides along with which herbicides cause injury to crops a). Triazines b). Ureas c). Both d). None
Description : Which type of herbicides act as growth pro moter under sub-lethal dose a). Phenoxys b). Triazines c). Ureas and uracils d). All
Description : Persistence herbicides pose hazard in soil when a). High persistence herbicides are used b). Crop failure necessitate re-planting c). Susceptible crop follows a short crop d). All
Description : At sub lethal dose which of the herbicides improves colour of the apple a). 2,4-D b). 2,4,5-T c). MCPA d). All of these
Last Answer : b). 2,4,5-T
Description : Herbicides of which group are generally incorporated in soil? a). Carbamate b). Dinitroaniline c). Triazine d). Both a and b
Last Answer : d). Both a and b
Description : Which of the herbicides are classified as highly toxic a). Paraquat and diquat b). DNBP and DNOC c). 2,4,5-T and PCP d). All of these
Last Answer : d). All of these
Description : Industrial weeds can be controlled by using a). Non selective herbicides b). Selective herbicides c). Soil sterilants d). Both a and c
Last Answer : d). Both a and c
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 : . An approach where bio-herbicides are used to control indigenous weed spe cies a). Inundative approach b). Inoculative approach c). Classical approach d). None of the above
Last Answer : a). Inundative approach
Description : . In india herbicides are registered un der which of the following Act a). Herbicide Registration Act b). Insecticide Act, 1968 c). Environment Policy, 2005 d). Indian Agrochemicals Registration Act
Last Answer : b). Insecticide Act, 1968
Description : High levels of Adoption of herbicide resistant crops have dramatically ____________ the use of herbicides a).I ncreased b). Decreased c). No effect d). None of the above
Last Answer : a).I ncreased
Description : Processes that break down the herbicides after application includes............................ a). Photo and microbial degradation b). adsorption and uptake c). leaching and runoff d). volatilization and run off
Last Answer : a). Photo and microbial degradation
Description : factors to consider in improving the effectiveness of herbicides application a). Increasing management diversity b). application timing c). inherent efficacy of herbicide d). All
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 : Multiple resistance is the phenomenon in which a weed is resistant to two or more herbicides having a). same mechanisms of action b). different mechanisms of action c). same chemistry d). different chemistry
Last Answer : b). different mechanisms of action
Description : Sulfonylurea herbicides inhibits a). ALS b). EPSP synthase c). PSI d). PSII
Last Answer : a). ALS