Subcapa de interfaz dependiente del medio

Alien . J . G . ; B utt, D . J . ; Dicker, G . H .L and Hunter, L.D. 1 97 8 . A comparison of the efficiency of sprays of two drop-size ranges i n an apple orchard. Pesticide Science 9, 545-554.

Charles. J .G . and Walker, J .T.S . 1 98 1 . !\lealybug control i n apples. Orchardist of New Zealand. 54, 252-253.

Charles. J .G . 1 982. Commercial control of mealybug appl e orchards. Orclzardist of

Ne\�· Zealand. S S , _298-299.

Cooke . B . K . ; Herri ngton, P .J . ; Jones, K.G. and Morgan, N . G . 1 97 5 . S pray deposit cover and fungicide distribution obtained on intensive apple trees by overhead mobj l e spraying methods. Pesticide Science 6, 5 8 1 -587.

Cooke, B .K . ; Herrington, P.J . ; J ones, K.G. and Morgan, N.G. 1 97 6 . Pes t and dise ase control w ith low doses of pesticides in low and u ltra-low volumes

4 122

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rate spray programmes in apple orchards. Crop Protection 9(3 ) , 207-2 1 7 .

Cross, J . V . ; Murray, R.A. ; Ridout, M . S . and Walkl ate, P.J . 1 997 . Quantification of

spray deposits on tree and bush fru it crops. Aspects of Applied Biology. 48, 2 1 7-

224.

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Scientific and Industrial Research: Information Series No. 60. Government

Pri nter, ew Zeal and. 29pp.

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4 123

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5 1 24

CHAPTER 5

5

Spray deposit requirements from multiple spray

applications for black spot disease control

" Op timum pesticide deposition may be defined in general terms as the application of a biologically effecrh·e dose on a target with maximum safety and economy.

Specifications for such optimum placement will vary greatlY according to the nature of the target organism, the crop, the methods used for pesticide delivery, rhe mode of action of the active ingredien ts [and/or] fomwlants and the environmental conditions. A jitrther complication is that initial sires of deposition ma_y be of little direct relevance to the final biological effect, since most pesticides are quickly redistributed after applicmion in the field. "

(Hislop, 1 987. Can 11·e define and achieve optimum pesticide deposits ?)

5 1 25