Vespula pennsylvanica / maculiforna / germanica / vulgaris / squamosa and DolichovespulaThe dog days of summer…fresh water melon, ice cream, p
06.06.2023 - 16:37 / gardenerspath.com / Helga George
How to Identify and Control Cotton Root Rot in Fruit and Nut Trees Phymatotrichum omnivorumCotton root rot, also known as Texas root rot and by its scientific name Phymatotricum root rot, is caused by the the soil-borne fungus Phymatotrichum omnivorum and is responsbile for serious and usually fatal root rots on more than 2,300 species of plants.
We link to vendors to help you find relevant products. If you buy from one of our links, we may earn a commission.
Fortunately for most Americans, the fungus only occurs in highly specific types of soils:
Originate from limestone Alkaline (pH 7-8.5) Exposed to high summer temperatures (soil temperatures reach 82 F) Low in organic matter Below 5,000 feetTherefore, Phymatotrichum omnivorum is limited to the southwest US and Mexico and parts of the south central US.
However, it does a world of damage in those areas and is extremely difficult to control.
One of the features that make it such a dreadful disease is that there is no specificity for a particular plant. This means that an infected cotton root can spread the fungus to the roots of an fruit or nut tree.
We at Gardener’s Path will help you to diagnose the disease and share strategies that have worked to control the root rot in some cases.
What to Look ForYou are most likely to see symptoms from June through September when the soil gets hot and the air in the canopy exceeds 104 F.
The first sign you have this disease will look like water stress. The leaves on your tree may die. The upper leaves die first, followed by the lower ones.
However, the leaves will remain attached to the plant, even after turning brown.
By the time the trees have started wilting, their roots are infected.
If you look at the surface of the decayed roots, they
Vespula pennsylvanica / maculiforna / germanica / vulgaris / squamosa and DolichovespulaThe dog days of summer…fresh water melon, ice cream, p
If you live in the Mid-Atlantic, you have almost surely heard of the dreaded spotted lanternfly (SLF), known scientifically as Lycorma delicatula.This invasive planthopper originated from China, where it was
If you’re anything like I am, it’s easy for you to fall in love with a new plant, sometimes based on its picture alone.For me, bergenia is such a plant. I find it difficul
Colorado potato beetles pose such a grave threat to potato crops that flamethrowers have been used to control them. However, you do not have to go to such extremes in your garden.We at Gardener’s Path provide a number of natural control methods to use ag
Gummosis refers to the oozing of sap or gum from a tree. This behavior is very common on stone fruits, including apricots, peaches, and plums.You can look at gummosis as your tree’s cry for help in the face of any one of a number of problem
Chrysanthemums are tough plants that are known for being maintenance-free, and it’s hard to even imagine them dying from some disease.So when they start to look a bit sad and wilty, it’s easy to ass
The squash bug is a pernicious insect, one of the most common and serious pests of cucurbit plants like squash and pumpkins, as well as cucumbers and melons, though typically to a lesser degree.Unfortunately, these bugs are widespread throughou
There are a lot of reasons to love bleeding hearts, but being relatively uninteresting to pests is one of the best.Maybe they taste bad or something? I’ll have to
Swiss chard is exceptionally beautiful on top of being delicious, which makes it doubly frustrating when the leaves turn up with unsightly holes or yellowing leaves.When pests attack, you need to take s
Is this a familiar scenario? You get up after a good night’s sleep and check your garden. It looks like there are notches on your bergenia leaves that weren’t there yesterday. Could that be…?While bergenia is generally resistant to pests,
You know those fruit flies that hover and get in your face when you have fruit that got too ripe? The ones that scientists use as model systems to advance medicine?They are highly annoying but don’t do much harm. The common fruit fl
If your tomato plants have enormous flower buds and little or no fruit develops, you should examine them more closely to see if they have the aptly named tomato big bud disease.While this disease can be a severe problem in subtrop