Browsing Life sciences and Bio-engineering by Author "Lengai, Geraldin"
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Activity of ethanolic extracts of spices grown in Tanzania against important fungal pathogens and early blight of tomato
Lengai, Geraldin; Mbega, Ernest; Muthomi, James (Bulgarian Journal of Agricultural Science, 2021-12)The nutritional and economic value of tomato is universally recognized yet its production in many regions is still low due to, among other reasons, fungal diseases. Farmers have desperately relied on synthetic chemical ... -
Activity of extracts from selected Tanzanian spices on major fungal pathogens and blight diseases of Tomato
Lengai, Geraldin (NM-AIST, 2021-08)Tomato (Solanum lycopersicum L.) is affected by many fungal diseases and farmers rely on synthetic pesticides for management. Detrimental effects associated with injudicious use of chemical pesticides have caused a ... -
In vitro and field evaluation of selected spices as botanical fungicide for management of Phytophthora infestans, causative agent for late blight in tomato
Lengai, Geraldin; Muthomi, James; Mbega, Ernest; Cheseto, Xavier (Taylor & Francis online, 2022-11-26)Late blight of tomato, caused by Phytophthora infestans, is responsible for massive losses in yield of open field-grown tomato and is managed by use of synthetic fungicides. The rising demand for food safety calls for ... -
Phytochemical activity and role of botanical pesticides in pest management for sustainable agricultural crop production
Lengai, Geraldin; Muthomi, James; Mbega, Ernest (Elsevier, 2020-03)Increased demand for food to feed the ever-growing population led to development and adoption of synthetic chemicals as a quick and effective strategy of managing crop pests and diseases. However, overreliance on synthetic ...