Here’s update #4 on my raised bed garden efforts this year. While we are enjoying eating our vegetables, some other creatures are as well. As our summer crops are winding down, we are starting some light fall vegetable crops, and planning to prepare the other beds for the winter.
Critters are back
Last time, we had corn coming up in one bed. It looked like we’d eventually have little corn cobs to pick, but soon after we took the picture below, something came in and ate the entire crop!
The same night our green bean crop, which was providing lots of beans for our dinners, was eaten as well.
That’s pretty much the end of both crops. We got a lot out of our green beans, so that was not a big loss, but we are sad that we didn’t get to see what the corn was like eventually.
Since we think our short fence is pretty solid, we are assuming this was deer coming in to eat the crops. Next year, better deer protection is definitely on the menu. We’ll look into either floating row cover or building a bigger fence to keep out the deer.
This doesn’t have much to do with our vegetables, but we have a potted butterfly milkweed plant placed just inside the fencing, and it was a host to a bunch of insect activity.
We found a couple big, juicy monarch caterpillars hanging out munching on its leaves, and at the same time, a whole crew of orange aphids were sucking sap out of the stem. A few days later, all the leaves were gone off the plant.
We began to have to check our green beans for caterpillars. We’d occasionally find these little guys or their holes in the beans. We think it is a young armyworm caterpillar. The problem wasn’t enough to do anything about — just an entertaining mention.
In this action-packed scene below, we have a tomato hornworm hanging out on my tomato plant while being a parasitized host for Braconid wasps, while a tomato fruitworm lounges above with a fly on top of it.
Powdery mildew and insect stippling on our ornamentals
Our zinnia and marigolds got these white spots all over. At first, I suspected this was powdery mildew on both due to their close proximity and both symptoms appearing white. However, my trusty, knowledgeable editors commented while reviewing this post that the issue on the marigolds was likely feeding damage from insects, but we don’t know what insects. As a reminder; you too can tap the knowledge of HGIC certified professional horticulturists via our free Ask an Expert service. Send in your questions!
The powdery mildew hasn’t transferred to the vegetable crops around them, so we haven’t been too concerned about it. The HGIC article on powdery mildew mentions that overcrowding of plants can create good conditions for mildew to grow due to the limited airflow. Our beds are definitely overcrowded. We’ll be spacing things out next year, and likely putting our ornamental pollinator attractors in pots outside of the raised beds.
We have been really learning that tomatoes are a crop that needs quite a bit of attending to. I should have been pruning suckers maybe every other day. The vines kept growing and growing, covering other plants and laying on the ground. Interior vegetation started browning and maybe getting moldy due to lack of airflow. There were green tomatoes growing, but it took them a while to ripen and be ready. I suspect my lack of pruning allowed the plant to use its energy to grow more vines rather than developing tasty tomatoes.
A few tomatoes on our orange tomato plant were on the vine for a LONG time and developed odd bulging characteristics.
I went hard trimming both plants; cutting off a lot of branches that didn’t have fruit on them, or were growing on the ground. Fruit has seemed to come in faster and more plentiful since, but I need to keep pruning! This is easier and less traumatic for the plant (I would assume) if I just picked those little suckers early.
As the season wears on, more and more of our tomatoes are getting cracking, but the fruits are mostly good to eat. The HGIC page says that this could be caused by excessive fertilizer, but we haven’t added anything to the soil. It mentions irregular watering could do it, and I suspect that may be the culprit. My wife and I have been in a perpetual, “Hey, you’ve been watering the garden these last few days, right?” “Uh, no, I thought you were” cycle recently. We’ll need to keep vigilant with our chores!
The future of this garden
So what’s next? We’ll see how long our tomatoes keep producing. Krysten planted a couple kale seeds and winter squash seeds that are coming up. We don’t have a grand plan for these, but we’ll see how they do.
For the rest of the beds, we will likely pull the leftover ornamentals and the tomatoes once done, and plant crimson clover cover crop. Cover crops lessen soil erosion during the winter, add organic material when turned under in the spring, improve soil quality, and add valuable nutrients. In the spring, we just mow it (in our case, in the raised beds, we will string trim it) to kill it, then later turn it over into the soil.
– Dan Adler
HGIC Web and Communications Manager