
%0 Journal Article
%A Allen, RN 
%T Spread of bunchy top disease in established banana plantations
%J Australian Journal of Agricultural Research
%D 1978/12/01
%V 29
%N 6
%P 1223-1233
%K 
%R https://doi.org/10.1071/AR9781223
%U https://www.publish.csiro.au/paper/AR9781223 
%X The spread of bunchy top disease by the banana aphid was studied in two established banana plantations, in the presence and absence of roguing operations for disease control. The probability P of a new infection occurring x metres from an estimated source of inoculum was described by a special case of Pearson's gamma probability functionPx = exp( &ndash; x / x) &divide; x,  where the mean distance between all of 178 new infections and their estimated sources of inoculum was x = 17.2 m, irrespective of roguing. All except two of the new infections occurred within five standard deviations (5x = 86 m) of the source as predicted, with nearly two-thirds within 20 m. The results were confirmed by successfully predicting the number of new infections that were encountered within 10 m of sources of inoculum in five other banana plantations. The results are discussed in relation to quarantine measures aimed at limiting the spread of disease in established plantations. 
