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Avatar for Derumedice
Jun 4, 2020 1:28 AM CST
Kobe, Japan
Hi, I planted my cucumbers at the beginning of May (store bought). They were doing fine up until last week with many blooms and young cucumbers. Temperature got a little hotter this week (80s). Leaves started getting yellow and the young cucumbers died off. I tried to water every morning since it's hot. I also added egg shells ( something new this week). I only didn't water the plant one day and all the young cucumbers died. Can I save my plants?
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Jun 4, 2020 2:15 AM CST
Name: Jim
Northeast Pennsylvania (Zone 6b)
My gardens feed my body & my soul.
Greenhouse Vegetable Grower Fruit Growers Seed Starter Canning and food preservation Region: Pennsylvania
Hi @Derumedice and welcome to the forum. Welcome!

The causes of chlorosis ( loss of the green coloration of the leaves, caused by a lack of chlorophyll) usually fall into one of 5 categories: plant pests, diseases, nutritional deficiencies, light problems, and water problems.

Here is an article which should help you trouble-shoot. https://gardeningvibe.com/cucu...

While your problem may be any of the five, the increased heat and missing watering that day may have precipitated the problem. Cucumbers need stable moisture once they are producing. If it varies too much one way or another, that's when problems can start.

I suspect from your pictures that your cucumbers have Downy Mildew. Perhaps another member will concur or suggest something else. It's good to get a few opinions, since these problems are not always easy to trouble shoot.

Egg shells are not going to help at this point if you are trying to introduce calcium. It takes a long time for the calcium in egg shells to be available for plants. Egg shells are best crushed, ground as finely as possible, and placed in your compost pile where they will work their magic over time and the calcium will be available as you use your new compost.

If you suspect a nutritional deficiency, use something like Blue Planet Nutrients CalMag Pro Formula which will address several nutritional deficiencies at the same time. https://www.blueplanetnutrient...
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Jun 4, 2020 5:06 AM CST
Name: Big Bill
Livonia Michigan (Zone 6a)
GROW ORCHIDS!!!
Bee Lover Lover of wildlife (Raccoon badge) Orchids Region: Michigan Hostas Growing under artificial light
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I agree.
Cucumbers are water loving plants! You need to till that soil once a week. You need to break up that soil surface so the water penetrates quickly into the soil.
You need to pull out those weeds as you till the soil. The weeds rob the cucumbers of much needed moisture!
Gardening is hard work! Constant work. Constant involvement! You can just simply sow the seeds and wait for your reward. You have to put in the work.
Keep the soil moist!
Orchid lecturer, teacher and judge. Retired Wildlife Biologist. Supervisor of a nature preserve up until I retired.
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Jun 4, 2020 5:10 AM CST
Name: Jim
Northeast Pennsylvania (Zone 6b)
My gardens feed my body & my soul.
Greenhouse Vegetable Grower Fruit Growers Seed Starter Canning and food preservation Region: Pennsylvania
BigBill said:
Gardening is hard work! Constant work. Constant involvement! You can just simply sow the seeds and wait for your reward. You have to put in the work.


Amen, brother! Thumbs up
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Jun 4, 2020 5:43 AM CST
Name: Big Bill
Livonia Michigan (Zone 6a)
GROW ORCHIDS!!!
Bee Lover Lover of wildlife (Raccoon badge) Orchids Region: Michigan Hostas Growing under artificial light
Echinacea Critters Allowed Cat Lover Butterflies Birds Region: United States of America
Hey Jim! How is NE Pennsylvania??
Sometimes I wish I was camping on the shores of Lake Wallenpaupack!!!
Orchid lecturer, teacher and judge. Retired Wildlife Biologist. Supervisor of a nature preserve up until I retired.
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Jun 4, 2020 5:56 AM CST
Name: Jim
Northeast Pennsylvania (Zone 6b)
My gardens feed my body & my soul.
Greenhouse Vegetable Grower Fruit Growers Seed Starter Canning and food preservation Region: Pennsylvania
Ah, you know the area? This time of year it is gorgeous, although the humidity is starting to creep in. I love it here Spring, Summer and Fall, but not so much the Winter.
Some of our property projects at Rumble
Visit My PA Food Forest
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Jun 4, 2020 6:21 AM CST
Name: Big Bill
Livonia Michigan (Zone 6a)
GROW ORCHIDS!!!
Bee Lover Lover of wildlife (Raccoon badge) Orchids Region: Michigan Hostas Growing under artificial light
Echinacea Critters Allowed Cat Lover Butterflies Birds Region: United States of America
I hear you.
Yes, my whole family loves Hawley and the surrounding area! We hired a fishing guide for several years back in the late 90's, good man. Dave Campbell was his name.
Orchid lecturer, teacher and judge. Retired Wildlife Biologist. Supervisor of a nature preserve up until I retired.
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Jun 4, 2020 6:24 AM CST
Name: Jim
Northeast Pennsylvania (Zone 6b)
My gardens feed my body & my soul.
Greenhouse Vegetable Grower Fruit Growers Seed Starter Canning and food preservation Region: Pennsylvania
I have to make a delivery up to Greeley tomorrow which is only about 15 miles out of Hawley. Nice area.

(Sorry for hijacking the thread, @Derumedice)
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Avatar for Derumedice
Jun 4, 2020 7:04 AM CST
Kobe, Japan
No problem MoonShadows! Always good to catch up with friends!
I'm a little confused because the article you sent says overwatering could be the reason of yellowing of leaves. Should I continue to water? I don't know how to identify the problem. Am I overwatering or not watering enough?

MoonShadows said:I have to make a delivery up to Greeley tomorrow which is only about 15 miles out of Hawley. Nice area.

(Sorry for hijacking the thread, @Derumedice)
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Jun 4, 2020 9:31 AM CST
Name: Jim
Northeast Pennsylvania (Zone 6b)
My gardens feed my body & my soul.
Greenhouse Vegetable Grower Fruit Growers Seed Starter Canning and food preservation Region: Pennsylvania
LOL...sounds like those medications that say they could cause constipation or diarrhea! Huh? Confused

I just wrote in your other post about tomatoes that my rule-of-thumb for developed plants (not seedlings) is to stick my finger into the soil about an inch or so. If it feels fairly moist, I don't water. If it feels fairly dry, I do water.

Also, water in the morning. Never in the heat of the day. And, rarely in the late afternoon/evening.
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