Is this yellow aster? Several of my coneflowers just had brown cones; they didn’t bloom. Can I cut down the plants now or do ...

The agency’s study of a group of tomato plants treated with salicylic acid revealed that a phytoplasma pathogen was present in 94% of the untreated plants and only 47% of the treated plants. The study ...

Aster yellows is a viral disease caused by phytoplasma pathogens and transmitted to marigolds by leafhoppers. When the bugs feed on the leaves of an infected plant, they become lifetime carriers of ...

During the fall and spring planting season, starter fertilizers or bone meal are often promoted for incorporating into soil.

They are produced by vegetative propagation, a process during which the plants are grafted together to pass on a parasite known as a phytoplasma which helps produce its branching form. Though the ...

We had a sample earlier this year of care that had phytoplasma disease, and they were also limp and rubbery, but they had a lot of other issues. So you would notice that the aboveground tissue of ...

近些年来，海南槟榔黄化病的发生造成槟榔大面积减产、绝收甚至死亡，严重威胁槟榔产业的健康发展。多年来，海南槟榔黄化病病原不清、检测手段缺失以及传播途径未知造成了针对性防控手段的缺失，使海南槟榔黄化病 ...

With our dry fall, I’ve been asked if antitranspirants should be applied to evergreens to reduce water loss during winter.

WHILE Koch's postulates have frequently been applied for the demonstration of the pathogenic status of a fungus attacking plant organs, so far as we are aware these postulates have not been ...

Caroline Gisera of Kisii ATC says the two varieties were developed following experiments to identify the insect that transmits the phytoplasma bacteria which causes the napier stunt disease.