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Tomato training as a way to increase crop yields

Trellis netting is used for tomato training to reduce pathogens and fill the fruits more than with raffia twine.

The importance of tomato training is as good as the planting itself. This is because an untrained tomato plant is likely not to survive the perils of growing into the production stage. It is necessary to ensure a proper growth of your tomatoes due to their exposure to infections, animal pests, insects, harsh weather and other conditions available enough to stop every tomato plant.

Untrained tomato plant not survive.

An untrained tomato plant is more subject to pathogens and the perils of growing into the production stage.

Tomato training is a legal means to harvest big and juicy fruits at the harvest stage. It will also grant you easy access to your garden apart from allowing you have a view of all your tomato plants swiftly. It’s important to note that the training method to be adopted is chosen before the planting. It could be caging, staking or trellises each with its unique benefits and challenges.

Materials required for tomato training

  • Twine

  • 8 feet long 1 x 1 – inch stakes

  • Pruners

  • Antiseptic cleaner

Training tomatoes inside a greenhouse, using the double wall of netting method of trellising.

Training tomatoes inside a greenhouse, using the double wall of netting method of trellising.


Steps to training your tomatoes

  1. Peg in your wooden or metallic stakes at about 6 foot deep with an interval of about 15 inches between each stake in rows. Tomato plants without an established height require about 25 inches intervals between the plants.

  2. Beside each stake, plant your tomato seedling at a space of about 3 inches and allow the tomato plants to grow to a height of about 15 inches

  3. Using the twine, tie each tomato stem loosely to the stakes

  4. Remove all shoots and suckers between the leaf and the stems. Well developed ones may be removed by pulling the shoot backwards while the small ones can easily be removed using your index finger or thumb. It’s true that these suckers are capable of producing fruits but growing at the bottom of your tomato plants has a lot of disadvantages since the fruits would be very close to the ground. Poor air circulation and too much moisture from your irrigation make them prone to diseases.

  5. In your tomato training, let the strongest sucker below the first truss be groomed into main stems while other suckers are pinched off completely.

  6. You may consider adding addition stake for more support to the second stem of the plants

  7. Monitor and guide the vine to their respective stakes each time they grow one foot taller

  8. Check on the plants every week, at least once and nip off developing suckers to stop any additional stem in the future. Too many stems diverse the plant energy to the production of flora for more support instead of fruit production.

  9. Remove every tip growing from each main shoot once the plants reach the top of the stakes. This will prevent the formation of more fruits that would not have enough time to mature.

a row long picture of how the double wall of netting is placed for tomato training inside a greenhouse.

A row long picture of how the double wall of netting is placed to train tomatoes inside a greenhouse. Tomato training is easy with HORTOMALLAS



  • Avoid planting your tomatoes in a garden where tomatoes, peppers or eggplants were previously planted. At least two years gap need to be observed before planting again.

  • Tomato training is not required for determinate tomato plants

Training indeterminate tomatoes with netting inside a greenhouse is done guiding the plant diagonally.

Tomatoes grown with trellis netting by HORTOMALLAS will not choke on the peduncle. Training indeterminate tomatoes with netting inside a greenhouse is done guiding the plant diagonally.


Safety measures

Do not prune leaves that shade fruits if you suddenly expose the plants to bright sunlight in a hot and dry weather. This can cause them to develop light brown patches.


HORTOMALLAS produce y promueve mallas agrícolas (espaldera, entutorado y soporte de hortalizas) que mejoran la calidad de los cultivos. Nuestra Misión es: AUMENTAR LA RENTABILIDAD DE LOS CULTIVOS DE HORTALIZAS QUE NECESITEN TUTOREO Y SOPORTE USANDO MALLAS EN LUGAR DE RAFIA TENDIDA MANUALMENTE Desde 1994 ayudamos agricultores a mejorar sus cultivos de pepinos, tomates, melones, calabazas, frijoles, chiles, pimientos y mas hortalizas que necesiten espalderas. HORTOMALLAS es un sistema perfecto para que las cucurbitaceas y solonaceas tengan mejores condiciones fitosanitarias, incrementando exposición solar y grados brix. A parte el obvio decremento del costo de la mano de obra y de agroquímicos, usando HORTOMALLAS se logra extender la vida util de la planta, así permitiendo cosechar mas producto y de mejor calidad! Hablenos, nuestros agronomos les brindarán atención especializada en toda Iberia y las Américas!

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