Too much shade Move garden to sunny area. Plants too thick Seed at recommended rate. Too much nitrogen Avoid excess fertilization. Failure to set fruit Improper temperatures Follow recommended planting time. Too much nitrogen Avoid excess fertilization.
Insects Identify and use control measures.
Dry brown to black rot on blossom end of tomato Low soil calcium Add gypsum. Extremely dry soil Irrigate and mulch. Cool weather during blooming Plant at recommended time. Do not use sprayer previously used to apply 2,4-D. Virus disease Remove infected plants to prevent spreading. Control insects that transmit.