Seasonal variation of aphids on cabbage

Raw field data for aphid and predator (Syrphid, spiders, and coccinellids) densities on cabbage, and weather data in two agroecological zones of Ghana, collected over two years for five cropping seasons.

收集于加纳两个农业生态区两年时间内五个种植季节的原始田间数据，包括蚜虫及捕食者（如花蝇、蜘蛛和瓢虫）在甘蓝上的密度数据，以及天气数据。