Selaginella diseasesLeaf spotLeaf spot disease often occurs during the rainy season, and is generally more likely to occur in humid weather because humid weather makes it easier for the bacteria to multiply. When the disease first occurs, it appears as small brown spots. The edges of the leaf spots become water-soaked and faded, and expand outward in a ring-like pattern. In the later stage, dark brown mold spots will appear in the center of the lesions, and under humid conditions, they will turn into a dark brown mold layer.Leaf spot disease prevention and control methodsRemove diseased leaves promptly and spray with 100 times diluted carbendazim during the disease period.anthraxAnthracnose initially occurs on the leaves and in severe cases spreads to the petioles. In the early stage, the lesions appear as small water-soaked yellow spots, which gradually spread into a ring-like shape. In the later stage, the lesions become connected into one, causing the leaves to dry up, and small black spots arranged in a ring pattern will appear.Anthracnose control methodsStrengthen maintenance and increase the application of phosphorus and potassium fertilizers to enhance plant resistance; in the early stage of the disease, you can spray with 1000 times diluted equal-volume Bordeaux mixture or 1500 times diluted thiophanate-methyl solution.Selaginella pestsBrown Soft ScaleBrown soft scale can harm many kinds of plants and is more common on Selaginella. Brown soft scale generally gathers on leaf surfaces or young leaves, sucking plant sap through piercing-sucking mouthparts, which can easily induce sooty mold disease, affect the plant's photosynthesis, and ultimately cause weak growth and yellowing leaves.Brown Soft Scale Control MethodsWhen there are not many insects, you can use a brush or bamboo stick to scrape off the insect bodies; during the nymph hatching period, you can spray with 100-fold diluted malathion emulsifiable concentrate or oxydemeton-methyl emulsifiable concentrate. |
<<: Common diseases and pests of sedge and their control methods
>>: Diseases and their control of Limonium
1. Efficacy and effects Buddha's hand flower ...
1. Breeding environment 1. Soil: Use loose and we...
Things to note when changing rose pots in summer ...
1. Getting angry Mulberries are warm in nature an...
Division propagation The underground stems of Haw...
1. Watering frequency During the flowering period...
Carnation growth habits Carnations do not like su...
What is olive vegetable? Olive salad is made by p...
Plant habits and characteristics Let's first ...
In fact, people who love to grow flowers know tha...
So why did people give it such a name? It turns o...
1. Soil White crystal chrysanthemum is not very d...
Growth conditions of red sandalwood The small-lea...
Medicinal When used as a herbal medicine, it is a...
Sansevieria , also known as Tiger Tail Orchid, is...