Common Bacterial Bacterial disease of common bean which causes Using resistant varieties Copper-based bactericides Blight (CBB) lesions on the leaves, stems, pods and seeds of Use of pathogen free seed (Xanthomonas the plant. The disease affects seed quality and Cultural practices including eliminating weeds, volunteer beans and axonopodis pv. phaseoli) can reduce yield by up to 45%, may be more in other potential hosts susceptible cultivars. Seed-borne bacteria has the capacity to produce huge amounts of secondary inoculum. Bean Rust of Small white specks under the leaf epidermis, and Crop rotation (two to three years) and soil incorporation of bean Azoxystrobin common bean rust coloured pustules. These pustules are debris to remove potential sources of rust spores, as well as found mainly on the underside of the leaf and bacteria causing bacterial blights. Boscalid (Uromyces appendiculatus) can become surrounded by a circle of chlorosis. Plant during recommended periods when exposure is lower Dark lesions ranging from 0.3 to 3.0 mm in When irrigating, ensure foliage can dry before darkness if possible diameter may be visible on the leaves. Elongated to avoid prolonged environmental conditions favorable to bacterial pustules may appear on pods, stems and diseases and rust petioles. These can become black when Plant resistant varieties teliospores form, usually on older leave. Monitor plants frequently during blossom and early pod Premature leaf chlorosis, senescence and development, especially during the first set, for initial rust signs defoliation have also been reported. Soybean lopper The early larval stages of this pest feed on the Planting of early-maturing cultivars Bt palisade layer of leaf undersides, leaving the Planting resistant cultivars Chrysodeixis includens upper leaf cuticle and wax layer intact. This Indoxacarb appears as a clear, irregular area on the leaves resembling a window. After early stages will Spinosad/ Spinetoram feed on the entire leaf, and heavy infestations can completely defoliate entire plants. When
Common Bacterial Blight (CBB) (Xanthomonas axonopodis pv. phaseoli) Bacterial disease of common bean which causes lesions on the leaves, stems, pods and seeds of the plant. The disease affects seed quality and can reduce yield by up to 45%, may be more in susceptible cultivars. Seed-borne bacteria has the capacity to produce huge amounts of secondary inoculum. Using resistant varieties Use of pathogen free seed Cultural practices including eliminating weeds, volunteer beans and other potential hosts Copper-based bactericides Bean Rust of common bean (Uromyces appendiculatus) Small white specks under the leaf epidermis, and rust coloured pustules. These pustules are found mainly on the underside of the leaf and can become surrounded by a circle of chlorosis. Dark lesions ranging from 0.3 to 3.0 mm in diameter may be visible on the leaves. Elongated pustules may appear on pods, stems and petioles. These can become black when teliospores form, usually on older leave. Premature leaf chlorosis, senescence and defoliation have also been reported. Crop rotation (two to three years) and soil incorporation of bean debris to remove potential sources of rust spores, as well as bacteria causing bacterial blights. Plant during recommended periods when exposure is lower When irrigating, ensure foliage can dry before darkness if possible to avoid prolonged environmental conditions favorable to bacterial diseases and rust Plant resistant varieties Monitor plants frequently during blossom and early pod development, especially during the first set, for initial rust signs Azoxystrobin Boscalid Soybean lopper Chrysodeixis includens The early larval stages of this pest feed on the palisade layer of leaf undersides, leaving the upper leaf cuticle and wax layer intact. This appears as a clear, irregular area on the leaves resembling a window. After early stages will feed on the entire leaf, and heavy infestations can completely defoliate entire plants. When Planting of early-maturing cultivars Planting resistant cultivars Bt Indoxacarb Spinosad/ Spinetoram