Sunday, November 22, 2020

SURVEY ON THE OCCURRENCE AND DISTRIBUTION OF MAJOR CASSAVA ARTHROPOD PESTS IN SIERRA LEONE | Journal of Biology and Nature

 


In Sierra Leone and Africa as a whole, insect pests constitute the greatest limit to the production of cassava. The objective of the study was to generate up-to-date information on the country's status of cassava insect pests. The aims were to determine, map and determine the prevalence, incidence, magnitude and distribution in the country's major geo-political districts.

During the rainy season survey, a total of 171 cassava farms were visited nationally, while a total of 193 farms were visited during the dry season survey, with an average of 15 farms per district.

Important differences in percentage frequency, severity score and prevalence of the major cassava pests with respect to district, cassava variety and season are shown by the outcome of the survey. In most districts, the percentage incidence and severity scores of the major insect pests were higher in local cassava varieties compared to enhanced varieties. Compared to the rainy season, the population of insect pests measured was typically higher during the dry season. In the southern and eastern parts of the country, the grasshopper population of one of the most dangerous insect pests of cassava was generally higher and more harmful compared to the northern and western areas of the country. As the main insect pests found from the survey will serve as a guide in the training of cassava farmers in the management of these insect pests, which will ultimately lead to an increase in farmers' yield and income, the results of this survey will support cassava farmers.


Please see the link :- https://www.ikprress.org/index.php/JOBAN/article/view/5253

No comments:

Post a Comment