Horticultural Technology 0.0 / 5 ? AgricultureHorticultureUniversityAll boards Created by: JoeCreated on: 22-03-15 17:53 Name all 5 spray qualities very fine, fine, medium, coarse, very coarse 1 of 26 Name the 4 pesticide modes of action systemic, translocated, residual, contact 2 of 26 Name all 5 spraying nozzles standard flat, even spray flat fan, deflector, hollow cone, air inclusion 3 of 26 Vegetable oils don't dissolve in what? water 4 of 26 Adding oil, water and an emulsifier creates what? emulsion 5 of 26 What 2 substances is DNA made up of? sugars, phosphates 6 of 26 What is the process called by which a solvent is removed? distillation 7 of 26 How many carbon atoms does glycerol have? 3 8 of 26 What 2 substances can detect a carbon carbon molecule? bromine, iodine 9 of 26 What do you use to check for unsaturated oils? bromine water 10 of 26 At what temperature does hydrogen harden vegetable oils? 60C 11 of 26 What catalyst speeds up the hydrogenation reaction? nickel 12 of 26 Which has a higher melting point, saturated or unsaturated oils? Saturated oils 13 of 26 What do you call parasites that benefit from a plant? pathogen 14 of 26 What breaks down dead plant material? saprophytic fungi 15 of 26 A plant becoming diseased has a what response? compatible 16 of 26 A plant being resistant has a what response? incompatible 17 of 26 What fungi has a mutual benefit for them and their plant host? symbiotic fungi 18 of 26 What response is it when a plant destroys its cells to fight a disease? hypersensitive 19 of 26 The stem and stalk of a potato is called what? haulm 20 of 26 What reproduction is an oospore responsible for? sexual 21 of 26 What reproduction is a zoospore responsible for? asexual 22 of 26 When chemicals are mixed this is called the what effect? cocktail 23 of 26 Constant pesticide use may lead to diseases becoming? resistant 24 of 26 To calculate spraying volumes you must measure what dimensions of each row? length, width 25 of 26 Length X width X number of rows equals what? area 26 of 26
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