The fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith), is a polyphagous non-native pest identified as a serious threat to crop production and food security globally, including in India. Its unintentional introduction and quick coverage in large areas is a serious concern to millions of farmers in the eastern Himalayan region. However, detailed understanding of farmers’ perceptions and the biological attributes associated with the meteorological factors for FAW is limited. The present investigation, which aimed to create baseline data on this pest, concurs with the idea that the FAW is widely dispersed throughout the maize ecosystems of Tripura, with an average infestation rate of 21.33 percent. The severity ranged from 0 to 1.40, with an average leaf damage score of 1 on a 0–4 categorical scale. The findings indicate that pheromone trap catch was significantly correlated with the evaporation rate as other meteorological factors influenced variably. The biological attributes imply that the life cycle was completed in 32.82 ± 0.08 days, with a high fecundity potential (1068.57 ± 4.35 numbers) in controlled conditions (25 ± 1 °C, 70 ± 5% RH). Indigenous natural enemies, such as entomopathogens, spiders, and wasps, were found to be the first defence against this invasive pest. A minority of the population (17.51%) was aware of the incidence of FAW. Furthermore, respondents’ socio-demographic variables were associated significantly with FAW status. This is the first scientific report from the eastern Himalayan region about farmers’ knowledge and awareness of the invasiveness of FAW. This finding enumerates a detailed understanding of FAW from diverse perspectives. Further, the concerted data provide an important baseline that could help the development of holistic management strategies for FAW.
27 February 2024 in Land Degradation & Development
The present study has been focussed to recognize and quantify the drought condition in Dhasan basin which falls in drought prone region of Bundelkhand (Madhya Pradesh). The area is under frequent occurrence of droughts since decades due to irregularity in arrival of rainfall. The high variability of the annual rainfall is one of the primary causes of the drought prevailing in the Dhasan basin on a regular basis. The decreasing trend of rainfall may further aid to drought severity. The rainfall departure analysis indicated that, the study area is under the grip of regular and continuous droughts with the drought frequency varying between once in 2 years to once in 3 years, which is rather very high. Sagar and Banda areas were identified to be most drought prone followed by Khurai.