regions of dense tree and shrub cover harbours predators, leading to increased stock losses while woody plant cover hinders mustering in both sheep and cattle areas. A number of techniques have been employed to clear or kill woody plants in savanna. Early pastoralists used felling and ringbarking, the removal of a ring of bark and sapwood, as a means of clearing land). In the 1950's arboricides suitable for stem injection were developed. War- surplus heavy machinery was made available, and these were used for
Müüritööd. Pedagoogiline kirjandus. Tallinn. Veski, A. Müüritööd. Pedagoogiline kirjastus. Tallinn 1948. Veski, A. Puitehituse käsiraamat. Tartu Eesti Kirjastus, 1943 Veski, A. Puitehituse käsiraamat. Teaduslik Kirjandus, Tartu 1940. Veski, A. Puusepa- ja laudsepatööd. Pedagoogiline kirjastus. Tallinn 1948. Veski, A., Aarmann, K., Niine A. Individuaalehitaja käsiraamat. Eesti Riiklik Kirjastus. Tallinn, 1959. Viitanen, H., Ritschkoff A.C. 1991. Mould growth in pine and spruce sapwood in relation to air humidity and temperature, Swedish University of Agricultural Sciences, Department of Forest Products, Report No 221, Uppsala, Sweden. Vinha, J., Korpi, M., Kalamees, T., Eskola, L., Palonen, J., Kurnitski, Valovirta, I., Mikkilä, A., Jokisalo, J. 2005. Puurunkoisten pientalojen kosteus- ja lämpöolosuhteet, ilmanvaihto ja ilmatiiviys. Tutkimusraportti 131. Tampereen teknillinen yliopisto, Rakennustekniikan laitos. WTA 2-9-04/D
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