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Tomato Pest & Disease Management Solutions

Tomato crops are susceptible to a variety of pests, diseases, and weeds that can significantly reduce yields and marketable fruit quality. At AcroTerra, we provide comprehensive pest and disease control solutions, including customized multi-active formulations.

Pathology Control

Common Tomato Diseases & Protective Measures

Early Blight

(Alternaria solani)
Impact & Crop Threat:

Common fungal disease producing target-board lesions on foliage and stems, causing severe defoliation and sunburn on exposed fruit.

Symptoms:
  • Circular, dark spots with concentric rings on lower leaves
  • Yellowing foliage around lesions leading to leaf drop
  • Collar rot on stems and dark leathery lesions at stem end of fruit
Critical Control Period:

Seedling stage to early fruit development

Recommended Fungicides:

Chlorothalonil, Mancozeb

Late Blight

(Phytophthora infestans)
Impact & Crop Threat:

Destructive water mold that rapidly blights leaves, stems, and green fruit, causing brown rotting and potential total crop failure.

Symptoms:
  • Irregular dark green, water-soaked foliage lesions
  • White mildew growth on leaf undersides under humid conditions
  • Firm brown, wrinkled decay lesions on fruit rendering them unmarketable
Critical Control Period:

Early to mid-fruit set stage, especially in humid or cool conditions

Recommended Fungicides:

Metalaxyl, Mefenoxam

Entomology & Pest Management

Common Tomato Pests & Field Interventions

Tomato Hornworm

(Helicoverpa zea / Manduca quinquemaculata)
Pest Impact:

Large caterpillars that rapidly consume foliage and chew deep cavities into green and ripening fruit.

Symptoms & Damage:
  • Large feeding holes and ragged leaf margins
  • Deep gouges and scars on developing fruit
  • Defoliated branches with dark frass droppings beneath plants
Critical Control Period:

Seedling through fruit setting

Recommended Insecticides:

Permethrin, Spinosad, Chlorantraniliprole

Whiteflies

(Trialeurodes vaporariorum / Bemisia tabaci)
Pest Impact:

Tiny sap-sucking pests that stunt plants, produce sticky honeydew, and transmit debilitating viruses like Tomato Yellow Leaf Curl Virus (TYLCV).

Symptoms & Damage:
  • Clouds of tiny white flying insects when plants are shaken
  • Yellowing, cupping, and curling leaves with stunted vigor
  • Sticky foliage covered with black sooty mold
Critical Control Period:

Seedling emergence through harvest

Recommended Insecticides:

Thiamethoxam, Imidacloprid, Spiromesifen

Seasonal Calendar

Critical Control Periods for Tomato

Stage 01

Seedling to Early Vegetative

Strict monitoring for early blight, flea beetles, and hornworm larvae

Stage 02

Flowering & Fruit Set

Preventative late blight management and whitefly vector suppression

Stage 03

Fruit Bulking to Harvest

Protect fruit integrity from fruitworms and blights while complying with Pre-Harvest Intervals

Fungicide Spectrum:

Mancozeb, Chlorothalonil, Metalaxyl, Mefenoxam

Insecticide Spectrum:

Permethrin, Spinosad, Thiamethoxam, Imidacloprid