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Garlic used to control nematodes in a rugby pitch of Scotland / Alho para combater nemas de galhas em campo de rugby !

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GARLIC TO CONTROL ROOT-KNOT NEMATODES IN RUGBY PITCH

In Scotland, high population of microscopic roundworms known as root-knot nematodes (Meloidogyne spp.) have caused serious damage to the Murrayfield rugby pitch at Edinburgh just a few days prior to the autumn test series with the visitors Japan, South Africa and Australia. Garlic spray will be used as a repellent to these parasitic worms that attack the turf roots. Read all about it as noticed by BBC Sport and by MailOnline Rugby.

ALHO NO COMBATE A NEMATOIDES EM CAMPO DE RUGBY

Em Edimburgo, na Escócia, sérios danos foram observados no gramado do campo de rugby Murrayfield, causados por vermes de solo conhecidos como nematoides de galhas (Meloidogyne spp.). A ocorrência está a exigir combate urgente pois um torneio de outono entre a seleção local e as da Austrália, Japão e África do Sul inicia-se nos próximos dias. A medida escolhida será a de aplicação de pulverizações com produto à base de alho, tido como repelente ao nematoide. Você pode ler a matéria completa, em inglês, como noticiada pela BBC Sport e MailOnline Rugby.

Root-lesion nematodes (Pratylenchus): a threat in Australia

Pratylenchus species: a threat also in Australia !

Pratylenchus neglectus and P. thornei are two root-lesion nematode species that play important role as plant parasites in Australia, mostly in relation to grasses, causing moderate to heavy losses when they are not detected in infested areas and/or effective control measures are not practiced. In these two videos, basic information dealing with the morphology, biology and ecology of these species are presented and illustrated as well as relevant issues relative to their control/ management under field conditions are briefly discussed.

Pratylenchus: problema também na Austrália !

Tal como Pratylenchus brachyurus e P. zeae motivam preocupação entre os agricultores brasileiros, na Austrália duas outras espécies do gênero – P. neglectus e P. thornei – desempenham igual papel, causando sérias perdas quando não detectadas nas áreas com problemas e/ou medidas de manejo eficazes deixam de ser aplicadas. Dada a dificuldade em se obter variedades resistentes e por serem espécies polífagas, as medidas de controle requerem adequado planejamento. Nos vídeos seguintes, narrados em inglês, aspectos básicos e aplicados das Pratilencoses na Austrália são abordados. Assista e aprenda um pouco mais!

 

Darwin’s dilemma resolved: Evolution’s “big bang” explained

Darwin’s dilemma resolved: Evolution’s “big bang” explained by five times faster rates of evolution

A new study led by Adelaide researchers has estimated, for the first time, the rates of evolution during the “Cambrian explosion” when most modern animal groups appeared between 540 and 520 million years ago.

The findings, published online today in the journal Current Biology, resolve “Darwin’s dilemma”: the sudden appearance of a plethora of modern animal groups in the fossil record during the early Cambrian period.

“The abrupt appearance of dozens of animal groups during this time is arguably the most important evolutionary event after the origin of life,” says lead author Associate Professor Michael Lee of the University of Adelaide’s School of Earth and Environmental Sciences and the South Australian Museum.“These seemingly impossibly fast rates of evolution implied by this Cambrian explosion have long been exploited by opponents of evolution. Darwin himself famously considered that this was at odds with the normal evolutionary processes. “However, because of the notorious imperfection of the ancient fossil record, no-one has been able to accurately measure rates of evolution during this critical interval, often called evolution’s Big Bang.

“In this study we’ve estimated that rates of both morphological and genetic evolution during the Cambrian explosion were five times faster than today — quite rapid, but perfectly consistent with Darwin’s theory of evolution.”

The team, including researchers from the Natural History Museum in London, quantified the anatomical and genetic differences between living animals, and established a timeframe over mais…