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Sydney NSW, Australia
For your information
2021-09-14T14:00:00.0000000Z

Phys.Org

Two branches of plant immune response closely linked

by University of Tübingen Like animals, plants need to be on a constant lookout to recognize and respond to invasion by microbes. Plant immunity consists of two branches—the initial …

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Plant_immunity
Sydney NSW, Australia
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2021-09-14T14:00:00.0000000Z

Phys.Org

by Kumamoto University A research collaboration based in Kumamoto University, Japan has become the first to successfully purify and identify an attractant for crop-infecting root-knot nematodes from flax seeds. Their experiments revealed …

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Nematodes
Attractants
Sydney NSW, Australia
For your information
2021-09-13T06:22:52.0089887Z
Coconut
Black_scorch
Thielaviopsis_radicicola
Sydney NSW, Australia
For your information
2021-09-13T06:19:48.3444900Z

ProMED http://www.promedmail.org

Source: The Scottish Farmer [summ., edited] https://www.thescottishfarmer.co.uk/news/19540099.trials-give-warning-using-untreated-seed/Cereal diseases like common bunt (_Tilletia tritici_) have rarely been seen over …

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Bunt
Ustilago_tritici
Sydney NSW, Australia
For your information
2021-09-13T06:13:21.7994735Z
Bondi Junction NSW, Australia
Fact Sheets
2021-09-09T14:00:00.0000000Z
<p>Photo 2. Close -up of Photo 1 showing the white, irregular leaf mines of <EM>Liriomyza</EM> sp.</p> <p>Photo 1. Leafminer damage to zucchini by <EM>Liriomyza</EM> sp.</p>
Pacific Pests, Pathogens and Weeds
Pacific Pests, Pathogens and Weeds

Summary

  • Worldwide distribution. On many plants in the cabbage, carrot, cucumber, daisy, legume and potato families, including crops, ornamentals and weeds. An important pest.
  • A fly, …
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Bondi Junction NSW, Australia
Fact Sheets
2021-09-08T03:18:03.0511092Z
<p>Photo 5. A yellow-shelled semi-slug,&nbsp;<EM>Parmarion martensi</EM>,<EM> </EM>with dark body colour, shell well-covered by mantle, and distinct cream-coloured line of the keel.</p> <p>Photo 4. A yellow-shelled semi-slug, <EM>Parmarion martensi</EM>,<EM> </EM>with dark body colour, and shell well-covered by mantle (similar to Photo 5).</p> <p>Photo 3. A yellow-shelled semi-slug,&nbsp;<EM>Parmarion martensi</EM>, showing little of the shell,&nbsp;but&nbsp;the cream ridge (keel) along the tail is clear.</p> <P>Diagram. Slug anatomy.</P> <p>Photo 2. A yellow-shelled semi-slug, <EM>Parmarion martensi</EM>, brown, and showing the shell partly covered by the mantle, the cream ridge (keel) along the tail, and black antennae.</p> <p>Photo 1. Side view of the yellow-shelled semi-slug, <EM>Parmarion martensi</EM>, showing the shell partly covered by the mantle. Contrast the grey colour with Photo 2.</p>
Pacific Pests, Pathogens and Weeds
Pacific Pests, Pathogens and Weeds

Summary

  • Restricted. Asia, North America (Hawaii), Oceania. In Fiji.
  • An invasive species, attacking vegetables and fallen fruit. Pale grey to dark brown, up to 45 mm long, plate-like shell, covered …
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Bondi Junction NSW, Australia
Fact Sheets
2021-09-08T03:18:02.0902994Z
<P>Diagram. Life-cycle of an armoured 
scale.</P> <P>Photo 3. Close-up of Photo&nbsp;2 showing the 
scales of different sizes - presumably males and 
females. 
</P> <P>Photo 2. Large numbers 
of scales, <EM>Aspidiella hartii</EM>, on the surface of yam, <EM>Dioscorea 
alata.</EM></P> <P> Photo 1. Colonies of 
the scale, <EM>Aspidiella hartii</EM>,<EM> </EM> increase&nbsp;on stored yams turning 
them&nbsp;whitish-grey.</P>
Pacific Pests, Pathogens and Weeds
Pacific Pests, Pathogens and Weeds

Summary

  • Widespread distribution. West Africa, India, Oceania. On yams, ginger, taro and turmeric are minor hosts. Occasionally, an important disease.
  • The scale (1-2 mm diameter) causes a problem …
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Bondi Junction NSW, Australia
Fact Sheets
2021-09-08T03:18:00.0000000Z
<p>Photo 4. Side view of queens, yellow crazy ant, <EM>Anoplolepis gracilipes.</EM></p> <p>Photo 3. Front of head of worker, yellow crazy ant, <EM>Anoplolepis gracilipes.</EM></p> <p>Photo 2. View from above of worker, yellow crazy ant, <EM>Anoplolepis gracilipes.</EM></p> <p>Photo 1. Side view of worker, yellow crazy ant, <EM>Anoplolepis gracilipes.</EM></p>
Pacific Pests, Pathogens and Weeds
Pacific Pests, Pathogens and Weeds

Summary

  • Worldwide distribution. Common in Pacific island countries. Favours disturbed agriculture, forest areas, houses. Characteristic long antennae and quick jerky movements. Does not …
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Bondi Junction NSW, Australia
Fact Sheets
2021-09-08T03:18:00.0000000Z
<P>Photo 5. Mosaic on leaves of&nbsp;pumpkin caused by <EM>Zucchini yellow mosaic virus.</EM></P> <p>Photo 4. Extreme symptoms of one or more zucchini viruses (Fiji).</p> <p>Photo 3. Infection of zucchini by unknown virus(es). The young leaves are pale and have green areas along some of the main veins (e.g., leaf over the fruit). The fruit shows dark raised patches.</p> <P>Photo 2. Distortion of zucchini fruit caused (possibly) by <EM>Zucchini yellow mosaic virus.</EM> Similar symptoms occur from infections by <EM>Papaya ringspot virus.</EM></P> <P>Photo 1. <EM>Zucchini yellow mosaic virus</EM> in zucchini showing leaf mosaic, and fruit distortions.</P>
Pacific Pests, Pathogens and Weeds
Pacific Pests, Pathogens and Weeds

Summary

  • Worldwide distribution. On zucchini and other cucurbits, including melon, pumpkin, watermelon, as well as species of Luffa and Momordica. Important diseases.
  • Four viruses infect …
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