Showing posts with label Dr. Garden-What is wrong with my plant?. Show all posts
Showing posts with label Dr. Garden-What is wrong with my plant?. Show all posts

Wednesday, September 25, 2013

Yellow Does Not Become You

I'm talking to you, cucumbers.

Pretty, but....


Yellow may look wonderful on our sunflowers and our pear tomatoes, and even on our yellow peppers. We always wanted to try yellow 'green' beans and are planning to try those next year. But yellow cucumbers are not a delicacy! Unless, of course, the variety of cucumber is supposed to be yellow, like this one or this one. However, in our case, we did not have one of those special varieties, we had planted regular old green garden cucumbers.

We noticed they were looking yellow, and because I am still new to gardening, I assumed they were supposed to be yellow. I picked one, brought it in, sliced it...it all looked quite delicious. Until the first bite. Bitter, dry, and disgusting! Granted, harvest time is late. I should have picked the cucumbers when they were still green; most cucumber plants are long finished by now.

Not tasty!


So, first and foremost in avoiding yellow, bitter (although admittedly pretty) cucumbers, PICK THEM!

Leaving the cucumber on the plant too long is not the only reason that cucumbers can turn yellow. I found the following information in a gardening question/answer page, and will keep it in mind for next year. Hopefully I'll only ever have to deal with making sure I harvest the cucumbers on time, but these answers will be good to know if needed!


  • My cucumbers do not turn green; they are yellow and bitter. This is the second year this has happened, the fruit is large, the plants have many flowers, and are producing, but this yellow cucumber is all we get.What can I do to correct this, or do I just give up?


This happened to me when I planted squash plants near my cucumbers. They cross-pollinated and the results were off-color and not tasty.


  • I have planted pickling cukes and they are turning yellow and they are almost shaped like a ball, round. Can you tell me why they are yellow?


Rounded cucumbers especially pickling cucumbers, mean that your soil is missing key nutrients, also poor irrigation can cause this problem. I learned this the hard way "by it happening to me!' My suggestion is to get a soil testing kit to find out what nutrients you are lacking. Also if your soil is hard and poor quality it can cause the water and fertilizer you put on not to soak enough into the roots. make sure to soak them deeply and often if your soil is hard. I would suggest next year to put in some soil ammendments, like some top soil, natures helper soil conditioner, garden lime and maybe even a little sand, to raise the ph and loosen it up a bit.


  • My cucumbers are blooming and producing cucumbers but when they become about an inch long the bloom falls off and the cucumber turns yellow and dries up. What is going wrong?


Most likely they have worms inside. Cut one open and make sure that they are not being eaten from the inside out.


  • We have healthy looking plants, but the cucumbers turn yellow and fall off. Why?


I had this same issue this year and read that it could be the lack of calcium! I had a small bag of gypsum from last year and spread it around the plants and now they are starting to take off! You can also clean your used egg shells, let them dry and crumble around the base of the plants!




Saturday, October 1, 2011

Another Dead One!

Okay, I should not be so excited about this. But look!!!


I would not even have seen that hornworm were it not for the many wasp caccoons on it. Another wasp nursery, yay! Yes, it's gross. Weird. Gives me the heeby-jeebies. But hey, I won't complain about the help these wasps will give me in protecting the tomatoes, this year and next.

Once again, we will LEAVE IT BE! We'll work around this macabre dead beast as we harvest our tomatoes. We want those cacoons to hatch and boost the population of braconid wasps. If only I didn't feel so queasy after looking at it...

Thursday, September 22, 2011

Leave It Be!

Last week, as we were reaching into the branches of our now-montrous tomato plants, we jumped back...our hands brushed past this thing and gave us a startle:


Once we (okay, mostly I) got over the initial 'ewww' factor, I took a close look. I had read about this very thing months before, when fellow gardeners were having outbreaks of tomato hornworm. The hooked horn hanging from this blackened carcass is a dead-giveaway...this thing had once crawled around our tomato plants looking something like this:

tomato hornworm larva  (12646 bytes)

Oh, eww. I'm all about nature, but these things really, really make me grimace. Probably mostly because I know that they are capable of destroying whole crops of tomatoes by eating all the leaves and stems from the plants. And on top of that, they are UGLY.

I had carefully looked for hornworms after Aunt Casey (fellow gardener and my sister-in-law) sent me pictures of some particularly huge and horrible looking ones in her tomatoes. At the time, I didn't find any. I did internet searches to arm myself with knowledge should we have an outbreak. We never did have an outbreak of them, and even after finding this single, very dead hornworm, I haven't found another. I have been a little more cautious (or should I say, squeamish?) as I reach into the plants, though, because the thought of brushing up against a hormworm really makes me squirm. The kids have been hoping to see a live one, but I am really okay with just the single, dead, mummy-looking specimen.

So, why does our mummy hornworm have little white caccoons all over it?

The caccoons are future braconid wasps.
Polistes wasp

They have a nasty way of laying their eggs on hornworms..eggs that hatch into hungry larva that burrow into the hornworm and eat its insides before making a caccoon. Eww, again. But this time, also...HOORAY! Anything to save the tomatoes! Apparently, this wasp not only likes hornworm larvae, but also aphids, cabbage looper, other garden caterpillars. Eggs from braconid wasps are even sold commercially, they are so beneficial for pest control in the garden.
I've always been a little afraid of wasps, but this knowledge--along with the fact that wasps are also amazing pollinators--makes me respect them a bit more. That doesn't mean I won't scream when one hovers and zooms in close to my face...but maybe I will scream less loudly?
The title of this post is LEAVE IT BE, and if you come upon a hornworm that's been renovated into a wasp nursery, that is what you should do. You want those wasps to live and thrive in your garden, as fellow bodygaurds to your tomatoes!