The present invention provides methods and compositions to improve fungal disease resistance and/or nematode resistance in various crop plants. The present invention also provides for combinations of compositions and methods to improve fungal disease resistance and/or nematode resistance in various crop plants. Powdery mildews are fungal diseases that affect a wide range of plants including cereals, grasses, vegetables, ornamentals, weeds, shrubs, fruit trees, broad-leaved shade and forest trees, that is caused by different species of fungi in the order Erysiphales.
