Phytophthora infestans is an organism that causes the serious potato disease known as potato blight. the effect of phytophthora infestans was most pronounced in ireland in 1845-57. it killed most of the potato crop which caused over one million people to starve to death. what type of organism is phytophthora infestans. a) bacteria b) fungi c) protist d) virus

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.