Leg of lady beetle larva

Lady beetle belongs to order Coleoptera. These are considered as useful insects because they prey on aphids or scale insect pests. Larva of lady beetle has long bodied with six legs. With the help of legs it can move from one location to another on plants in search of predators. Larva is a voracious predator…

Leg of termite

Cercus of cricket

Crickets belong to order Orthoptera. They have a pair of cercus at the end of the abdomen. The cercus is a pair of appendages at the end of the gut of some insects and other arthropods. Many forms of cerci serve as a sensory organ, but some serve as pinching weapons. In many insects, they…

The exotic insect

At the very beginning, I thought this is Lice but later it turned out to be a completely different one. This time I achieved the best visual clarity so far by implementing new illumination method -See (B) in part 3- Enjoy the observation! Sneak Peak of the observation: Step by step procedure.1- Sample.This year in…

Spores of Fern

Ferns are reproduced from spores that are gathered in clusters called sori, which are usually on the underside of the fronds. The spores can be yellow, green, brown, or black. The sori are sometimes covered with a membrane called an indusium, which will lift up when the spores are ripe.

Pollens of Firebush (Hamelia patens)

Pollens of Firebush (Hamelia patens) look like water droplets through the Foldscope. Approximate size of the pollen is 38 microns. Firebush is a commonly found plant in gardens.

Beetle Anatomy

Second image obtained from https://www.kerbtier.de/Pages/Themenseiten/enKoerperbau.html. See if you can identify what parts of the beetle are in the foldscope image! This guy was captured at Lake Lagunita on Stanford University’s Campus. If you know the species of the beetle, please let us know. The scale bar was estimated by calibrating the foldscope using manually delineated…

Workshop on Foldscope at Meghalaya, India

The prop roots of Ficus elastica (rubber tree) are trained over 15-20 years to form the natural living bridge to cross rivers and streams found in Meghalaya. The bridges grow to approximately 50 to 100 feet long and have strong and deep interwoven prop roots providing a boat-shaped foothold. A workshop on Foldscope has been…

I can’t be-leaf it!!! A survey of the leaves on Stanford campus

We observed various types of leaves we could find on campus using the Foldscope. Pictures were taken with the Samsung Galaxy S8. The scale bar was obtained by imaging a caliper set to 0.2mm, obtaining the distance between the calipers on the image, then creating a 100um scale bar that is half that distance. The…

Pollen explorations of Thuja

Here in India Thuja plant is considered an auspicious tree/shrub – Morpankhi and is linked to knowledge diety and I remember keeping its twigs in between book pages as a child. The male cones were plucked and pollen isolated to see under foldscope. Thuja – an evergreen, coniferous tree belongs to family cupressaceae ( Cypress…

The flowerful foldscope: Flowers and Fruit on Stanford Campus

We got a white flower from a tree on Stanford campus. Its petal and anther were imaged using the Foldscope. All photos were taken with a Samsung Galaxy S8. The scale bar was obtained by imaging a caliper set to 0.2mm, obtaining the distance between the calipers on the image, then creating a 100um scale…

Pollen from a tree

A medium-sized tree outside my boundary wall provides shade to passer byes in summer noons. These days it is in full bloom with white and purple small flowers. I plucked a few flowers and observed its pollen under foldscope.

Vomiting Ladybug Larva

This ladybug larva was collected on the steps near an oak tree on Stanford’s engineering quad. Ladybugs are known to regurgitate meals if they turn out to be toxic.

Germinating pollen of Mahogony flower

Pollen germination was seen in several pollen of the mahogany flower that were released on teasing the anthers. The pollen were dusted on a slide, covered and observed using a foldscope attached to an iPhone. Long pollen tubes arising from the germ pores were closely observed.

MAIZE RUST

COMMON RUST OF CORN, CAUSED BY Puccinia sorghi . SymptomsSymptoms of common rust often appear after silking. Small, round to elongate brown pustules form on both leaf surfaces and other above ground parts of the plant. As the pustules mature they become brown to black. If disease is severe, the leaves may yellow and die…

Workshop on Foldscope at Universal Bee Club

Department of Environmental Science, University of Calcutta organized a one day workshop on Foldscope at Universal Bee Club, Bauria, and West Bengal in collaboration with Howrah Vigyan Chetna Samannaya. 25 beekeepers from various parts of West Bengal participated in this workshop. Introductory session- At first, a brief introduction on Foldscope was given to the participants….

Beekeeping training summer camp at Universal Bee Club

Department of Environmental Science, University of Calcutta organized a workshop on Foldscope at Beekeeping training summer camp, at Universal Bee Club, Bauria, West Bengal in collaboration with Howrah Vigyan Chetna Samannaya. Introductory session-In this camp, the brief idea of melissopalynology and the use of melissopalynology for evaluation of honey was given to the beekeepers. Demonstration…

Glimpse | Foldscope local community explorations

This time I am sharing with you content created by local Foldscope community in Iraq. See their nice footages! Also, let us know your opinions and what could be improved. Videos 1- Edit \ Unknown insect – front view.(It looks microscopically like a lice). 2- Edit \ Unknown insect – back view + wings(It looks…

Pollens of the Thespesia populnea (Portia tree )

The pollens of Thespesia populnea (Portia tree ) look beautiful. There is variation in size, smaller one is around 70 microns and bigger one is 95 microns in size. Very common tree in Mumbai region. Photographed pollens using Foldscope.

Black knot fungus

This knotty, black growth on a tree branch is black knot fungus (Dibotryon morbosum). It infects cherry, plum, apricot and chokecherry trees and kills the infected part of the tree and provides a habitat for insects. Treatment is fungicides and cutting the affected branch several centimetres below the infected site.

Use of Foldscope in field study (Urpod wetland, Goalpara district, Assam)

A field study was carried out at Urpod wetland of Goalpara district, Assam on 20/04/2019 with an objective to study the diversity of aquatic organisms in the wetland using Foldscope. The participants were from B.A. Semester-IV of Goalpara College, Goalpara. They learned how to assemble and use the foldscope at field level. They also observed…

Having a look in the hindgut of termites

If you get a chance to go to Yosemite by car, you should see an insane number of rotten logs in the woods. A ranger explained to me that it’s because of a snow storm causing toppling of trees. All those logs on the floor are progressively rotting and eventually in spring will form a…

Polyad Pollens of Madras Thorn or Manila Tamarind (Pithecellobium dulce)

Polyad is a type of pollen arrangement in which many pollens are joined together to create round structure. Pithecellobium dulce pollens are polyad. In Mumbai, near my house, Madras Thorn or Manila Tamarind is flowering right now. I collected its flowers and took pictures using Foldscope. Pollens look beautiful, each polyad must be around 30-50…