Yu-Bing Huang, and Yi-Chung Chiu
Pitaya or dragon fruit (Hylocerreus spp.) is an emerging fruit tree that has been popularized and cultivated in recent years in Taiwan. Due to the improvement and promotion of planting techniques, the cultivated area has almost reached 2,500 hectares across the country until 2017. With the full cooperation between researchers and farmers, the quality and flavor, as well as the people’s consumption have all gradually increased. Under the export demand for domestic dragon fruit, pests issue will become important. In Taiwan, pest occurrences in dragon fruit can be classified into two categories according to the crop growth period. Some pests occur during the plant growth and flowering stages, such as moths, thrips, aphids, and beetle pests, and others occur during the fruit stage, such as fruit flies, mealybugs, stink bugs, beetles and snails. Most of them have a direct or indirect relationship with ants. Therefore, for the pests, it is imperative to control the ants and develop effective management strategy. The low-toxic or non-pesticide materials are recommended to control ants for the organization of the growers, practice the area-wide integrated pest management (AW-IPM), and suppress population densities for the fruit flies in the future.