CONTROL FOR WHITE GRUBS 



17 



Fig. 5. — -Microscopic characters of the Muscardine fungus; magnified about 



800 diameters. 

 1. Mature spores. 2. Spores germinating. 3. Mycelium, the vegetative 

 structure, which finally forms a compact white mat ; the ultimate tips on 

 the surface are the sporophores (spore-bearers). 4. Sporophores, showing 

 how the mycelium becomes constricted at the tips like strings of sausages, 

 forming the spores. These drop off as they ripen ; the green powder on 

 the dead grub is composed of myriads oi them. 



