El Nino Amplifies Fall Armyworm Threat to Maize, Experts Warn of Major Crop Loss
With El Nino ushering in higher temperatures across regions, fall armyworm infestations are on the rise, threatening significant maize crop damage. Director of migratory pests and biosecurity control, Mr. Shingirayi Nyamutukwa, emphasizes the urgency of diligent field scouting by farmers to curb potential yield losses estimated between 8.3 million to 20.6 million tonnes annually. Unlike the African armyworm, the fall armyworm’s rapid breeding and invasive nature in warmer climates present a formidable challenge to control efforts, first observed wreaking havoc in Africa in January 2016.
Understanding the Threat
Fall armyworms, primarily targeting maize crops, have evolved into a considerable threat to food security since their identification in Africa in 2016. Their ability to breed quickly in warm conditions complicates control measures, with experts like Mr. Nyamutukwa urging immediate action to prevent extensive crop damage. This pest is distinct from the African armyworm, which affects pastures and indirectly threatens livestock by depleting grazing resources and potentially causing poisoning.
Call to Action for Farmers
Given the alarming potential for crop losses, the emphasis is on early detection and rapid response. Farmers are encouraged to scout their fields regularly for signs of infestation, employing integrated pest management practices to mitigate the spread. Additionally, innovative approaches such as push–pull technology (PPT) have shown promise in managing pest populations while enhancing soil fertility, offering a glimmer of hope in the battle against these invasive pests.
Implications for Food Security
The spread of fall armyworm poses a significant risk to food security, with the potential to devastate maize yields on a large scale. This calls for a coordinated effort among agricultural stakeholders to disseminate knowledge on effective pest control strategies and to support farmers in adopting sustainable practices. The ongoing threat underscores the need for vigilance and proactive measures to safeguard crop production against the backdrop of changing climatic conditions.
As the global community grapples with the challenges posed by climate change, the rise of pests like the fall armyworm serves as a stark reminder of the interconnectedness of environmental factors and food security. With the right strategies and collective action, however, there is hope for mitigating the impact of these threats and ensuring a stable food supply for future generations.
Source Link: https://bnnbreaking.com/weather/el-nino-amplifies-fall-armyworm-threat-to-maize-experts-warn-of-major-crop-losses
