Grains Research and Development

North (151 results)

  • Bluegreen Aphid

    Acyrthosiphon kondoi

    Region
    West, National, North, South
    Adults are 3 mm long, vary from grey-green to blue-green and may have wings. They are normally found on the upper part of the plant, particularly growing points. Nymphs are similar but smaller in size....
  • Bluegreen Aphid

    Acyrthosiphon kondoi

    Region
    South, National, North, West
    Adults are 3 mm long, may have wings, vary from grey- green to blue-green and have two long siphuncles that extend beyond the base of the abdomen. They are normally found on the upper part of the plant, particularly on growing points. Nymphs are similar but smaller in size.[test]...
  • Bluegreen Aphid

    Acyrthosiphon kondoi

    Region
    North, National, South, West
    Adults are 3mm long, vary from grey-green to blue-green and may have wings. Adults have siphunculi (tube-like projections on either side at the rear of the body) that extend past the body. They are normally found on the upper part of the plant, particularly growing points. Nymphs are similar but...
  • Bt

    Bacillus thuringiensis

    Region
    North
    This naturally occurring bacteria produces spores that contain a toxin. It is also produced commercially. Larvae must eat Bt for it to be effective. Unlike NPV, Bt does not spread in the larval population. There are a number of different varieties of Bt. A variety may be specific to an...
  • Brokenbacked Bug

    Taylorilygus pallidulus

    Region
    North
    Adults are 5 mm long. Tips of wings are bent down at 45° giving the ‘broken- back’ appearance. Nymphs are similar to green mirid nymphs. Very common on sunflower but does not damage seed....
  • Brown Bean Bugs

    Riptortus serripes, Melanacanthus scutellaris

    Region
    North
    Adults of both species have brown, elongated bodies and hindlegs that are carried at 45° to the body. Adult Riptortus serripes are 15 mm long and have a yellow stripe along each side of the body. Adult Melanacanthus scutellaris are 10 mm long and have a cream marking in the...