Ricardo M. Souza

Ricardo M. Souza

Campos dos Goytacazes, Brazil

Universidade Estadual do Norte Fluminense Darcy Ribeiro

Professor and scientist

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Published on Feb 20, 2018

Expenditures

Below is a table showing the expenditure flow for our project. We did not expect such a big fee to transfer funds from U.S. to Brazil through Paypal. The total amount of funds we received is $2,799...

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Published on Jan 22, 2018

Our project was fully funded!! You are the stars of this funding campaign!! Soon you´ll hear from our team!!

Our project was fully funded!! You are the stars of this funding campaign!! Soon you´ll hear from our team!!THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!...

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Published on Dec 14, 2017

Bruna´s first assay, concluded this week, testing the efficacy of entomopathogenic roundworms in floor drains (sizes 1 through 4 clockwise from top left). She applied water, 15 mosquito larvae and 1500 roundworms per drain (10 replicates of each drai...

Bruna´s first assay, concluded this week, testing the efficacy of entomopathogenic roundworms in floor drains (sizes 1 through 4 clockwise from top left). She applied water, 15 mosquito larvae and ...

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Published on Nov 28, 2017

Here´s our "celebrity": Heterorhabditis indica LPP35. Each little white speck floating in the water is a roundworm. They are small but they can do wonders against agricultural and urban pests!

Here´s our "celebrity": Heterorhabditis indica LPP35. Each little white speck floating in the water is a roundworm. They are small but they can do wonders against agricultural and urban pests!

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Published on Nov 28, 2017

Preserving entomopathogenic roundworms (ERs): hundreds of thousands of roundworms are kept in culture flasks, one for each species or isolate. We maintain a collection of ERs from many sites accross Brazil, from natural and agricultural environs.

Preserving entomopathogenic roundworms (ERs): hundreds of thousands of roundworms are kept in culture flasks, one for each species or isolate. We maintain a collection of ERs from many sites accro...

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Published on Nov 28, 2017

Obtaining mosquito larvae to conduct the assays: mosquito eggs (those little things that resemble grains of black rice) are placed in water-filled trays with a little dog or cat feed. Larvae emerge from the eggs and go through moltings; we use L3 an...

Obtaining mosquito larvae to conduct the assays: mosquito eggs (those little things that resemble grains of black rice) are placed in water-filled trays with a little dog or cat feed. Larvae emerg...

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Published on Nov 22, 2017

Here´s how entomopathogenic roundworms kill the mosquito: once inside the larvae, the roundworm burrow through their gut and gain access to different parts of the larval body. Here a large roundworm female (arrow) emerge from the dead larval head.

Here´s how entomopathogenic roundworms kill the mosquito: once inside the larvae, the roundworm burrow through their gut and gain access to different parts of the larval body. Here a large roundwor...

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Published on Nov 22, 2017

Females of A. aegypti lay their eggs mostly in household water reservoirs. Floor drains, small containers and even open, unflushed toilettes and untreated swimming pools are often infested with mosquito larvae. Here are some kinds of indoor reservoir...

Females of A. aegypti lay their eggs mostly in household water reservoirs. Floor drains, small containers and even open, unflushed toilettes and untreated swimming pools are often infested with mos...

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Published on Nov 22, 2017

Here´s how entomopathogenic roundworms are cultured: larvae of mealworm beetles (arrow) are infected and die hours later. The roundworms multiply inside of the cadaver and days later they emerge by the hundreds of thousands, searching for a new inse...

Here´s how entomopathogenic roundworms are cultured: larvae of mealworm beetles (arrow) are infected and die hours later. The roundworms multiply inside of the cadaver and days later they emerge b...

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I´ll look into it. Best wishes for 2018! Ricardo.
Dec 30, 2017
Biological control of the mosquito Aedes aegypti
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Dear Dale, surplus nematodes - those applied to drains or water containers but not eaten by mosquito larvae - would certainly have no ecological effect. They must infect insects to survive, which other than mosquito larvae, are rare in water containers. Those applied to drains would eventually be flushed into the sewer system.
Dec 29, 2017
Biological control of the mosquito Aedes aegypti
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Dear Judith, we´ve been advertising the project through e-mails and FB. Backers are coming up, although slowly :/
Dec 29, 2017
Biological control of the mosquito Aedes aegypti
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Dear Jens, we were not aware of this attempt on malarial mosquitoes, but I´ll certainly look for it and learn from them. Thanks for the hint :)
Dec 29, 2017
Biological control of the mosquito Aedes aegypti
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