Puffed infected patches – are these of nematodes or some pest?

Yatin of 4th semester @GGDSD College, Chandigarh brought me some infected leaves of Ficus tree to observe under foldscope. These he had got from his hometown in Haryana (Punjab) during winter break. All the leaves showed puffy, white balloon- like blisters/blotches due to some disease. I tried a sample out of these under foldscope. Everytime…

Soft rot of tomatoes

Tomatoes which were accidentally left out in the kitchen at room temperature for two days showed a cottony growth. On fixing the sample on a slide and observing under a foldscope, branching pattern of hyphae resembling that of Rhizopus stolonifer was observed        (ref. ipm.ifas.ufl.edu/pdfs/Postharvest_Disorders.pdf) R. stolonifer can cause soft rot on soft fruits. Ripe…

Infected pea pods

Golden yellow-brown coloured raised spots were seen on the pods of pea. A sample was taken from the infected area and teased to separate out the cells. The slide when observd under a foldscope revealed several spores. On surfing the literature, the symptoms matched with those of pea blight. Blight of pea is caused by several…

Studying Post- harvest losses in fruits during storage using foldscope

Apples are a delicacy of North India and are supplied from Jammu & Kashmir and Himachal Pradesh to the entire India. Long distance transport requires a proper storage at low temperature. However, certain losses may occur during storage. An apple obtained from supermarket showed a rotting spot. A sample was taken from the infected area…

Unidentified disease on Duranta

The Duranta hedge growing in my garden is lately showing diseased symptoms. Its leaves are curled at margins and puckered. Observing these regions under foldscope revealed hypertrophy. Cellular masses were seen in these hypertrophied regions. The cause of these symptoms is not clear. This post is open to read and review on The Winnower.

Pests on Chrysanthemum leaves

It is flowering season for Chrysanthemums in my garden. Some white powder was spotted on the leaves. Under foldscope some pests could be seen on the undersurface of Leaves. Are these Aphids or mites? How can I control their spread and have my Chrysanthemums blooming ?      This post is open to read and…

Unidentified microbes on surface of Chrysanthemum leaves

While looking at the cocoon-like thing on Chrysanthemum leaves, I also noticed dust. With the curiosity how dust would look under a foldscope, I took the sample on a slide using the cellotape. I saw some unidentified spindle shaped microscopic organisms along with the dust particles on the leaf surface. What are these? I am…

A calcareous cocoon-like structure on Chrysanthemum leaf

  A calcareous cocoon-like structure was seen on my Chrysanthemum leaves. I plucked and tried to foldscope it using time-lapse. But the shell dissolved a few hours later and I could only observe the structure of the shell. Is it a shell of a nematode or an insect ? This post is open to read…