- 10 Tips for Growing Heirloom Tomatoes
- Webinar Slide Deck | Tomatoes: 10 Unsung Heroes | 34-pp PDF
- Common Tomato Pests, Diseases & Physiological Disorders | An Overview of Biotic & Abiotic Problems
- French Heritage Tomato Varieties | The Best of the Old World Marries the New
- Grafted Tomato Plants | Key Growing Information
- Greenhouse Tomatoes | Key Growing Information
- Grow a Rainbow Mix of Cherry Tomatoes
- 'Maxifort' Rootstock Tomato Germination | Tech Sheet (PDF)
- Open-Pollinated Revival Project: 3 Improved OP Heirloom & Heritage Tomatoes
- Open-Pollinated Tomato Project | Sampling Survey Questions (PDF)
- Johnny's Hosts Tomato Growers' Roundtable | Press Release
- Rootstock Tomatoes | Key Growing Information
- Determinate Tomato Varieties | Comparison Chart (PDF)
- Greenhouse Tomato Varieties | Comparison Chart (PDF)
- Greenhouse Tomato Pruning & String Trellising | Tech Sheet (PDF)
- Heirloom Tomato Varieties | Comparison Chart (PDF)
- Indeterminate Tomato Varieties | Comparison Chart (PDF)
- Tomatoes | Key Growing Information
- Paste, Plum & Roma Tomato Varieties | Comparison Chart (PDF)
- Basket-weave Trellising Instructions for Tomato & Pepper Plants | Tech Sheet (PDF)
- Side-Grafting Tomatoes | Advantages, Materials, Technique | Tech Sheet (PDF)
- Top-Grafting Tomatoes | Advantages, Materials, Technique | Tech Sheet (PDF)
- Tomato Production Challenges & Issues | Tech Sheet (PDF)
- Trellising & Crop Support Systems for Tomatoes | Stake & Basket-weave, Stake & Hanging String/Wire, Lower & Lean
- Video: Tomato Top-Grafting Demo: Splice Grafting & Cleft Grafting • Materials & Technique
- Video: An Intro to the Fundamentals of Tomato Grafting Success | Johnny's Webinar Series
- Video: How to Grow Cherry Tomatoes • From Seed to Harvest
- Video: Artisan Tomatoes™ | from Johnny's Selected Seeds
- Video: How to Prune Greenhouse Tomatoes
- Video: 'Cherry Bomb' | JSS-Bred Organic Cherry x Grape Tomato from Johnny's
- Video: 'Clementine' | The Tangerine-Colored, Organic Cocktail Tomato from Johnny's Breeding Team
- Video: Tomatoes: 10 Unsung Heroes | Johnny's Webinar Series
- Video: How to Control Tomato [and Tobacco] Hornworms
- Video: How to Identify Late Blight on Tomatoes
- Video: How to Manage Late Blight on Tomatoes (Phytophthora infestans)
- Video: How We Process Our 'Washington Cherry' Tomato Seed
- Video: How to Prune Tomatoes
- Video: How to Graft Greenhouse Tomatoes
- Tomatoes: 10 Unsung Heroes | Johnny's Educational Webinar Resources
- Video: Growing Tomatoes in Containers with Niki Jabbour & Johnny's
- Late-Summer Recipe Preview with Farmer-Chef Frank Giglio | Three Lily Farm, Thorndike, Maine
- Video: Choosing & Growing Paste Tomatoes for Sauce-Making • with Niki Jabbour
- Video: 'Hot Streak' : The Vibrant New Striped Tomato | Exclusively from Johnny's
- Video: High-Value Crops & Varieties for Your Garden • Tutorial with Niki Jabbour
- Tomato Variety Trends: How Breeding Influences Your Seed Selection | Johnny's Educational Webinar Resources
- Video: 'Mochi' : The Gumdrop-like Cherry Tomato | Exclusively from Johnny's
- Video: Tomato Pruning 101 • Tutorial with Niki Jabbour
- Fundamentals of Tomato Grafting | Johnny's Educational Webinar Resources
- Webinar Slide Deck | Fundamentals of Tomato Grafting | 15-pp PDF
- Top-10 Field Tomatoes for the Tunnel | What to Look for, Plant Habits & Recommendations
- Webinar Slide Deck | Tomato Variety Trends: How Breeding Influences Your Seed Selection | 29-pp PDF
- Video: Tomato Variety Trends: How Breeding Influences Your Seed Selection | Johnny's Webinar Series
- 3 Ways to Choose the Best Tomato Varieties | Johnny's Selected Seeds
Video: How to Control Tomato [and Tobacco] Hornworms
Tomato and tobacco hornworms, are large, visually similar caterpillars that feed on many parts of plants in the nightshade family (Solanaceae), including tomatoes. The key distinguishing feature is that the tomato hornworm has V-shaped, yellow-white markings on the body, and the tobacco hornworm has white diagonal lines.
Because of their large size, they can rapidly defoliate tomatoes, potatoes, eggplants, and peppers. Handpicking is one method of controlling these highly destructive pests. You can also apply Dipel DF (OG) (which contains the bacterium Bacillus thuringiensis subsp. Kurstaki), as a biological method that is certified for organic production to control hornworms. Predatory wasps can also have a controlling effect.
The adult stages of the tomato and tobacco hornworms are likewise visually similar members of the Sphingidae, the sphinx moth family. That of the tomato hornworm is commonly known as the five-spotted hawkmoth (Manduca quinquemaculata), and that of the tobacco hornworm is commonly known as the Carolina sphinx moth or tobacco hawk moth (Manduca sexta).