Yellow And Spotted Leaves On Pacman Broccoli

Filed Under: Insects, Food Gardens, Vegetables · Keywords: Pacman, Broccoli, Yellow, Leaves, Spots · 4100 Views
I transplanted pacman broccoli plants into a brand new raised garden bed a week ago. I only have organic soil, no compost or peat moss or any fertilizers or weeds. I do NOT know ANYTHING about gardening so I google a lot of stuff, and cant seem to find any specific answer. Some of the leaves have turned yellow and have grayish spots on them. I also noticed we have lots of insects eating all of my plants so we just sprayed a pesticide on them. Can anyone tell me what I'm doing right and wrong?

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Additional comments about this question: · Gardenality Genius · Zone 8A · 10° to 15° F
Is it the lower leaves of the broccoli plants or all of the leaves that are turning yellow and developing gray spots?

10 years ago ·
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Answer #1 · Autumn Starr's Answer · I have four or five plants. One in direct sunlight has a lower leaf that is yellow(assuming too much or not enough water) but the others don't get as much sunlight and the yellow leaves are on different places on the plants. Maybe a possible plant disease? I know there are a ton of the typical insects eating my plants because some leaves have holes so I sprayed a vegetable safe pesticide made by ortho and it has helped I've noticed but I'm not sure what I'm doing right or wrong to keep all the plants and leaves healthy. I posted some pictures of my plants in my garden page if that helps you any to answer my question.)

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Answer #2 ·'s Answer · Hi Autumn - My first guess as to what could be causing the yellowing and spotted leaves would be soil moisture and sun exposure.

Sounds like the one in more sun is doing better with only a lower leaf turning yellow. Broccoli likes lots of sun. Lower yellow leaves can be removed.

As with most other vegetable plants, Broccoli likes more sun. The plants you have growing in more shade seem to be having the problems. Because they're in shade they probably won't need as much water as the ones in sun.

I took a peek at your garden pics and it looks like you've mulched the bed genorously so there shouldn't be as much a need for supplemental water. I would suggest using the finger test to check for soil moisture before watering. The soil should be kept somewhat moist but not consistently wet or soggy. During dry periods you'll need to water more.

It could also be the pH of the soil. Have you tested the soil for pH to check the acidity? Broccoli thrives at a pH of anywhere between 6.2 and 7.2, with 6.5 to 7 being optimum. Since this is a new garden, it might not be a bad idea to have your soil tested for pH and nutrient and mineral make sure there aren't any deficiencies.

There's a possibility your plants have Club Root. This is a fungus and all brassicas (thats the family umberalla for Broccoli along with Brussels Sprouts, Cabbage, Kohlrabi, Turnip, Cauliflower) are prone to it. Check to see if the roots of your young broccoli have become stubby and swollen. When broccoli are affected by Club Root the leaves become yellow and wilt causing severe stunting of growth. Spores are produced and can survive in the soil for up to five years. Club Root is usually found in older gardens but it can also come from seedlings purchased from outside sources. If it's present, you can prevent club root by practicing crop rotation, never growing it in the same spot in the garden. Reducing the acidity of the soil by adding lime will help in controlling Club Root.

It sounds like you're using an organic insect control, which is what I would recommend if you're going to use an insecticide. Keep a watchful eye out for caterpillars as they can destroy a broccoli plant. They feed on the underside of the leaves and the best way to control them is to just pick them off. They lay their eggs on the underside of the leaves as well so look for yellow clusters of these and remove them as well.

All this being said, it's not easy to grow broccoli. It can take some trial and error to be successful. But, once you know how, you know how. And, if you love broccoli like I do, it's worth the challenges.

Also, you can upload pictures to your question here in Ask Experts. Just click on the Upload A Picture link to the right of where your name appears on your question, next to the Edit Your Question link.

Hope this info was helpful. Let me know if you have other questions.

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