Multidecadal, Continent-level Analysis Found No Impact of Climate Warming on Wheat Aphids

Temperature drastically determines insect abundances, thus under climate change, identifying major drivers affecting pest insect populations is critical to world food security and agricultural ecosystem health. Here, we conducted a meta-analysis with data obtained from 120 studies across China and Europe from 1970 to 2017 to reveal the roles of climate and agricultural practices in determining populations of wheat aphids. We showed aphid loads on wheat had distinct patterns between these two regions, with a significant increase in China but decrease in Europe over this time period. Although average winter and growing season temperatures increased over this period in both regions, we found no evidence showing climate warming affected aphid loads. Rather, differences in pesticide use, fertilization, land use, and natural enemies between China and Europe may be key factors accounting for differences in aphid pest populations. These findings provide insights for developing effective agroecosystem management under global change. These long-term data suggest that climate change may not be the most important driver of agricultural pest loads. Therefore, under global environmental change, consideration of multiple factors at large spatial-temporal scales will likely provide more insights for developing effective agroecosystem management to safeguard world food security.

Can agroecology and CRISPR mix? The politics of complementarity and moving toward technology sovereignty

Can gene editing and agroecology be complementary? Various formulations of this question now animate debates over the future of food systems, including in the UN Committee on World Food Security and at the UN Food Systems Summit. Previous analyses have discussed the risks of gene editing for agroecosystems, smallholders, and the concentration of wealth by and for agro-industry. This paper takes a different approach, unpacking the epistemic, socioeconomic, and ontological politics inherent in complementarity. I ask: How is complementarity understood? Who is asking and defining this question? What are the politics of entertaining the debate at all? I sketch the epistemic foundations of science and technology that organize different notions of evidence used in agroecology and genetic engineering. On this base, I offer 8 angles on the compatibility question, exploring the historical contradictions that complementarity discourses reveal and the contemporary work they do. I work through questions of (1) technological neutrality, (2) “root cause” problems, (3) working with nature, (4) encoding racism, and dilemmas of (5) ownership and (6) access. These questions, I argue, require a reckoning with (7) ontologies of coloniality-modernity, which help us get underneath—and beyond—the complementarity question. Finally, I offer (8) a framework for thinking about and working toward technology sovereignty.

Recommendation of Crop, Fertilizers and Crop Disease Detection System

India is a highly populated country and randomly change in the climatic conditions need to secure the world food resources. Framers face serious problems in drought conditions. Type of soil plays a major role in the crop yield. Suggesting the use of fertilizers may help the farmers to make the best decision for their cropping situation .The number of studies Information and Communication Technology (ICT) can be applied for prediction of crop yield By the use of Data Mining, we can also predict the crop yield. By fully analyze the previous data we can suggest the farmer for a better crop for the better yield. This application also provide model which predicts the type of crop disease based on textural similarity of leaves.