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Argentine stem weevil numbers building

AgPest — Thu, 02 Nov 2017 20:00:59 +0000

Argentine stem weevil is building up in the North Island and will need to be considered in pasture and crop establishment. Insecticide coated seed may be a viable control option and insecticide application can provide temporary relief from this pest and allow seedlings to establish. Argentine stem weevil is a significant threat to seedling grasses, even those infected with endophyte, cereals and maize crops. See DairyNZ Pasture Renewal Guide for a guide to endophyte selection.

Clover root weevil feeding becoming obvious

AgPest — Tue, 31 Oct 2017 19:38:19 +0000

Clover root weevil feeding will become obvious in November-January – U-shaped notches at the edge of clover leaves show adults are present. The presence of larvae may be indicated by the pasture appearing nitrogen deficient. While control is generally not an option careful management of clover will help maintain pasture quality. Additional nitrogen may need to be applied to pastures and clover should not be over-grazed. In the South Island this weevil will be appearing in some areas for the first time.

Look for brassica springtails

AgPest — Mon, 16 Oct 2017 19:30:51 +0000

Look for brassica springtails before sowing brassica crops. Place a white card or cloth on the soil surface and gently disturb the soil around it. This will cause the springtails to jump and land on it making them easier to see.

Direct drilling? Check for slugs.

AgPest — Wed, 04 Oct 2017 19:30:57 +0000

If direct drilling new pastures or crops check for slugs as these can devastate establishing seedlings. An application of slug pellets may be required or control may be achieved by heavy stocking rates.

Look for brassica springtails

AgPest — Sun, 16 Oct 2016 21:30:13 +0000

For further information on brassica springtail, including identification, biology, impact and control click here.