Currently, the Mekong Delta has a relatively high area of guava cultivation. Because guava is an easy-to-grow, give fruit, often chosen to be intercropped with other plants in the garden or grown in a specialized form. Many delicious varieties of guava such as Queen guava, purple guava, seedless guava, Taiwanese guava, etc. Due to high economic efficiency, the guava growing area is increasingly expanding.

Bud rot disease  on pineapple is common and harmful in most pineapple growing areas, especially in pineapple growing areas in the northern provinces. All pineapple varieties are affected by this disease, but resistant varieties cause less damage. In general, this is one of the dangerous diseases on pineapple trees, causing top rot, fruit rot, and . plant death, causing loss of density and yield.