This study investigates the effectiveness of various concentrations of Insect Growth Regulators (IGRs) in controlling the maize stem borer (Chilo Partellus), a significant pest threatening maize crops globally. Maize stem borers cause extensive damage, ranging from dead hearts in young plants to severe stem damage in mature plants, leading to yield losses between 26.7% and 80.4%. Traditional insecticides pose environmental risks and can lead to pest resistance, prompting the need for safer pest management methods.
The researchers conducted a field experiment to evaluate six different IGRs: Lufenuron®, Pyriproxyfen®, Sitara®, Viper®, Track®, and Priority®. These IGRs are categorized as reduced-risk pesticides that primarily target juvenile pest stages, minimizing harm to beneficial insects. The study used a Randomized Complete Block Design (RCBD) with 24 treatments, assessing the effectiveness of IGRs in reducing infestation rates at 3, 7, and 14 days post-application.
Results highlighted that Pyriproxyfen® and Priority®, especially at double the standard concentrations, were the most effective in reducing maize stem borer infestation. These treatments achieved significant reductions in larval density and tunnel length, showcasing their potential as viable solutions in integrated pest management (IPM) strategies for maize cultivation. The study underscores the importance of adopting IGRs as part of a sustainable pest control approach, balancing crop protection and environmental safety.
🔗 Full Text: https://www.igminresearch.com/articles/html/igmin147
🔗 DOI Link: https://dx.doi.org/10.61927/igmin147
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