Keep tree free from insects by washing dust off foliage occasionally with water. Always read and follow all directions carefully on pesticide labels and wear required protective clothing. Measure amount to be used carefully to prevent damage to the tree. There are insecticides available for use on citrus at your local nursery or home - improvement center. Rather than make recomendations, we will tell you what we use for some common insect pests.
Less water is needed as evaporation is reduced and weeds are inhibited.
Redwood shavings, fir bark, gravel or crushed rock make good mulches. To avoid root diseases, keep mulch at least six inches away from the tree trunk. The age, location and condition of the tree, degree and duration of cold determine possible damage from sub-freezing temperatures. Healthy, well-fertilized trees can tolerate brief dips into the upper twenties. Limes and lemons are more sensitive to cold than mandarins, kumquats, and oranges.