Monday, July 2, 2012

Keeping Tomato Plants Healthy

There are a few cultural practices you can start to help in keeping tomato plants healthy. Disease & virus issues are the biggest problem around here for tomato plants.....insects - not so much.

Watering: always water at the base of the plant, never the foliage. Disease spreads quickly when plants are wet. Water running off a diseased plant can spread to other plants. Water in the morning when possible, so if the foliage does get wet by accident, it has the daytime to dry it off better than at night. Apply 1-2" of water (including rain) per week in 2 applications only. Do not water daily, unless they are tiny transplants. In this hot strecth of weather, every other day is okay because the plant is using it up quicker = roots not drowning.

Spacing: You can't move them, but I hope you gave them more space than the photo above. Plants need about 3-4 sq. feet each for good air flow, and sunshine. Crowded plants do not dry off as quickly, and they are shaded by each other - limiting their sunshine - limiting their ability to photosynthesise and make food for itself - affecting growth and production. Plants also then compete for available water and nutrients. Give'em space and let'em grow!

Removing leaves: Often you may find yellowing leaves at the base of the plant. It is good to remove them, but do not touch healthy leaves until you wash your hands. Many issues with disease are soil borne and splash up on the lower leaves, and then it starts. Removing a few of the lower leaves also helps to get air flow at the base of the plant (good practice for evergreens too!)

Mulching: A 6-8" layer of straw about 1ft. all the way around the plant will do wonders! It will help reduce evaporation by about 90% and keeps the soil softer and loose which aids in root growth. Straw also acts as a 'breaker' for the garden hose, and reduces soil splash back on the plants leaves and fruits.

Insects: you can dust for insects if you see them, but I never apply dust, even 'organic' after fruits are present. Get on the insects early if you have them. 

I invite you to post any gardening questions, it's that time of year.......don't be shy!

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