Show for extermination of worm enemies of bulbs certain eelworms eel worms or nematodes are very injurious to narcissus and other bulbs how to kill these worms without injuring the bulbs has been a question scientists ot of the united states department of agriculture found that it could be done with general success by treatment with hot water or vapor heat still some of the pests survived these survivors proved to be a minority of the population which were quiescent or taking a rip van winkle nap in the bulb the worms which were active at the time of treatment were more easily killed experimenting further these scientists observed that temperatures of 70 to SO degrees fahrenheit applied by either hot water or vapor heat induced activity among these quiescent or dormant nematodes which were resting in the bulbs it seems then that growers who wish to treat bulbs with hot water or vapor heat to kill hill worms of this type should first keep the bulbs at a temperature of 70 to SO 80 degrees fahrenheit in water or vapor for two hours to awaken the dormant worms and stimulate them to activity |