OCR Text |
Show ANTHRACN0SE SPOT ON BEAN Nearly Everyone Is Familiar With Spotted Appearance of Wax-Podded Wax-Podded Varieties. Anthraenose Is a bean disease of fungus origin and goes under a number num-ber of names, as rust, wilt, pod spot, etc. As there Is a true rust and a wilt, caused by bacteria, the name pod spot or anthraenose is preferred for it. Practically all parts of the bean plant except the roots are subject to attack of the fungus. The most common indication of the presence of the disease is the occurrence of brown or black sunken areas on the stems, leaves and pods. They may also appear ap-pear on the leaves and stems of the plant soon after it appears above ground and cause considerable losses through a reduction in the stand. On the older plants the attack is most serious on the larger veins of the leaves and the leaf may be wholly destroyed de-stroyed or its efficiency greatly reduced. re-duced. From the stems and leaves the fungus spreads to the pods, and as many are rendered unsightly considerable con-siderable direct loss Is occasioned. The presence of the fungus is often unnoticed until it appears upon the young pods. On these it produces small brown or rusty spots, which en- large ana darken until they become nearly black. The affected tissues of the pod dry, leaving sunken areas, In the centers of which may be seen small pink spots, masses of spores which rapidly spread the disease from plant to plant. The spores by which the fungus is spread from plant to plant are very sticky when wet and are readily m m & P V ' f i Anthraenose Spot. transferred on the hands, clothing or implements. On this account beana should never be cultivated or gathered gath-ered while wet with dew or rain. If It Is too much trouble to observe these precautions for the whole crop It could be done with little extra effort Cankers on Bean Pods. for a small plat on which to grow seed for future planting. if the following recommendations are observed but little loss will resull from anthraenose: 1. Plant seed free from disease. 2. Keep away from the plants while they are wet. 3. Remove and burn diseased plants as soon as they are observed. |