Currently viewing the tag: "Tomato Bugs"
What's That Bug? does not endorse extermination

I just finished reading your letter about the evil “tomato bugs”. On a 3 day weekend last year 4 of the nasty guys destroyed 3 of my tomato plants. I DO NOT want this to happen again. I was wondering what they look like when they are just starting out their reign of terror. I have only ever seen pictures of them when they were about 3 inches long. Also where do they come from, and is there a way of preventing their arival at all?

Dear Stephanie,
I’m sorry for the delay in this reply. Somehow, your letter got lost in cyberspace. “Tomato bugs” are the larval stage of a sphinx moth, Manduca sexta. They begin life as eggs and hatch into tiny caterpillars about 1/4 inch long. They are green, and their coloration combined with their lighter traverse markings help them to blend into the foliage of the tomato plants they feed upon. Look for them on the undersides of the leaves where they prefer to hang. Often the first evidence that there is a tomato hornworm is the presence of their telltale droppings along with nibbled leaves. They eat the soft portion of the leaf, leaving only the stems behind. Diligence is your best defence. Spend time with your plants, especially when they are young, and search for evidence of grazing hornworms daily.

What's That Bug? does not endorse extermination

I am new to growing tomatoes, and am currently having mixed results. I live in the DFW area and planted the young plants about 4 weeks ago (middle of April). They have been growing well, but there is a slight mystery. One of the plants (an heirloom variety) has leaves that are looking scrunched up. Almost as if they have been lightly squashed in hand. Another plant is having trouble keeping its flowers. Flowers show in nice little yellow clumps, and then all of a sudden they are broken off – almost like they are cut or bitten through leaving a kind of stumpy growth. I would love to know what is doing that and what to do about it.
Thanks in advance
Christopher Bird
PS Please don’t publicize the email address, I have been spam free for 3 years! Thanks

Dear Christopher,
Heirloom varieties often have potato type leaves. This is no indication that the plants are unhealthy. Blossoms will not set fruit until the nighttime temperatures are warm. Don’t fret.

What's That Bug? does not endorse extermination