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Katherine
08:02PM, 21 Oct 2009
Answer: Yates Tomato Dust contains 3 active ingredients...
Category: Vegetables & Herbs
Expert
08:02PM, 21 Oct 2009
G
I have noticed that there is a black patch on the stem of some of my tomato plants, Im not sure what to do. The leaves at the top of one of the plant are curling and the plant is not growing as well as the other plants (this plant doesnt get much sun beca

There are black patches on some plants but not on all of them, there are some yellow leaves on the plants but thats towards the bottom of the plant and I thought that would be normal as long as there isnt that many yellow plants.

Submitted: 04:53PM, 31 Dec 2009
Answer: Dear G,

Unfortunately tomato plants can be susceptible to fungal attack, with just two of these diseases being Target Spot & Septoria Leaf Spot. Symptoms will first appear on the leaves as small lesions and also on the stems as dark coloured lesions. Infection usually occur during periods when the temperatures are between 16-32 degrees C and high moisture. To stop these diseases from spreading you will need to implement a spraying program. Copper sprays will certainly help to control fungal disease used at 7-14 day intervals.

Yellow leaves can be a sign of nutrient deficiency. It is important to ensure that the plants are given sufficient nutrients while they are growing. This can be done by using products such as Dynamic Lifter for Tomatoes or a soluble fertiliser called Thrive Soluble Flower & Fruit. Maintaining adequate soil moisture is also important to stop the plants from wilting during hot periods. The key is to keep the plants healthy so they are able to cope during their growing period.

Pests can also be a problem on tomatoes, so using a dust (Yates Tomato Dust) will help to control insects as well as fungal diseases.

With just a little care I am sure your tomato plants will be able to produce a good crop for you.

Answered: 09:32AM, 13 Jan 2010

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