Garlic and very easy to grow
"Be sure you obtain cloves from certified disease-free stock, because once a field has been infected with white rot fungus, it may take decades for the infection to completely clear. And nematodes can breed in garlic for up to six seasons before suddenly taking an entire crop. Besides using clean stock, inspecting plants and pulling any that look diseased, and using sticky traps for onion thrips, are the best management practices.
White rot, or
Sclerotium cepivorum, is the most serious disease of garlic. White rot is a fungus that can strike all
Allium crops, including onions. White rot-infected garlic plants can be identified because their leaves will turn yellow and the plants will die back partially and wilt. The roots rot as well, so infected plants may uproot easily. White rot typically develops from the middle of the season to harvest.
Nematodes,
Ditylenchus dipsaci, are another problematic garlic pest. These microscopic animals are similar to worms and live inside the garlic plant itself, eating it as it reproduces. Nematodes do not need water to survive and they can live in the surrounding soil for several years. Nematode infestation can build up for several seasons without much damage, then strike and take out an entire crop.
Onion thrips are the most common insect that plagues garlic. Thrips damage the leaves when the rasp them to drink the sap of the plant, which slows the growth of the bulb. If severe, thrips may cause the garlic to wilt and die."
