Planting 101

Seven common plant diseases you should look out for

Powdery Mildew

More so in the growth of new plants this disease leaves a white or gray powdery substance of the top of the leaves which can cause distortion leaves. This diseases formation is from dry foliage, low light and moderate temperatures. The most successful way to avoid this is by providing adequate air circulation.


Downey Mildew

This disease on plants results in severe defoliation and flower drop impatiens. It leaves leaves appear light yellow or stripped green and yellow. The leaf edges also curl downward and look wilted. To cure this try separating the plants so that the air between plants move more easily and that the leaves dry more quickly.

Fire Bright

This type of disease affects pears, apples, fruit trees, roses, and small fruits, you will be able to tell if your plant has this disease because the shoots will become wilted and blackened. The best way to prevent this is by planting resistant varieties.


Rust

Firstly, you might be thinking that rust only grows on metal, but that's not the case. These symptoms include a powdery tan to rust-coating coating to help get rid of this you can apply neem oil which helps by killing spores on the leaves.




Fusarium and Verticillium wilt

This type makes plants ranging from flowers, fruits, vegetables, and ornamentals. This causes the plants to first wilt and then further results can lead to the discoloration of yellow. To control this try planting resistant cultivars.


Club Root

Club root affects vegetables and flowers in the cabbage family. Plants infected by the fungus wilt during the heat of the day, and older leaves yellow and drop. Roots are distorted and swollen. Avoid club root by choosing resistant cultivars and raising your own seedlings. The fungus has spores that can persist in soil for many years. If you've had past club root problems, adjust the soil pH to at least 6.8 before planting susceptible crops.


Fruit Rots

Grapes infected with black rot turn brown, then harden into small, black, mummified berries. Brown rot of stone fruits causes whole fruit to turn brown and soft. Control fruit rots by planting resistant cultivars, removing and destroying infected fruit, and pruning to increase air movement. Applying compost tea or Bacillus subtilis may help prevent the disease from developing. Sulfur sprays throughout the season can be effective, too, as a last resort.