John Sulzbach recently started a tree care company called Proper Tree in Killingworth, CT. He holds an arborist license from the state of Connecticut. Early spring is the optimal time to plant new fruit trees or fertilize existing trees. Gardeners should clear dead fruit and leaves from the base of fruit trees to prevent decay and damage. Pruning dead branches before buds form or leaves appear helps trees grow healthily. Horticultural experts recommend spraying dormant oil or using insect traps in early spring to control mites, scale, and pests before populations increase.