White Mango Scale, Aulacaspis tubercularis Newstead (Hemiptera: Sternorrhyncha: Diaspididae) in Ethiopian Mangifera indica Orchards: Incidence, Infestation, Severity, Distribution, and Growers' Knowledge
DOI:
https://doi.org/10.20372/afnr.v1i2.848Keywords:
Farmers' knowledge, Incidence, Infestation, , Management, Severity statusAbstract
White mango scale, Aulacuspis tubercularis is the devastating insect pest of mango in the world. A. tubercularis was introduced into Ethiopia a decade ago, however, except a few areas its distribution, incidence, infestation level, severity status and farmers' knowledge on this pest is not well studied. Thus, the survey was carried out in five regional states and one city admiration namely: Oromia, Southwestern Nations, and Nationalities People, Benishangul-gumuz, Amhara and Harari Regional states, and Dire-Dawa City Administration. Multi stage sampling procedure was used for data sampling. A total of 1230 mango trees were selected purposively and 12 leaves were randomly plucked from each tree at 4 cardinal directions. The presence or absence of A. tubercularis cluster was tested and rated in percentage. The result of the study confirmed that A. tubercularis was distributed in all study areas up to air distances of 239, 277, 380, and 436 km to the direction of the western, southwestern, eastern, and northern directions, respectively. The incidence of A. tubercularis cluster was significantly (P<0.05) higher in Assosa zone and the minimum was recorded in northShewa zone. Among the respondents 63% of them attempted to manage the pest using different cultural practices like, under-tree smoking and pruning heavily infested branches. From this study, it was concluded that the distribution of the A. tubercularis was at an alarming rate and its infestation and severity status is at an increasing rate, which indicates the need for urgent action in implementing control measures and awareness creation of mango growers.
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Accepted 2023-12-18
Published 2023-12-31
