May 17, 2023

QUIZ – Grasshopper nymphs

How well do you know your grasshopper nymphs? Test your skills with the following four matching questions showing first instar nymphs (5mm or 1/4" long) for the four major pest grasshopper species on the Prairies. Credit for all photos: Dan Johnson, Lethbridge

1. What grasshopper species is this?

2. What grasshopper species is this?

3. What grasshopper species is this?

4. What grasshopper species is this?

5. Grasshopper early instar nymphs are small, don’t hop far and don’t eat much. If they are highly concentrated, a spot spray may prove beneficial to prevent them from reaching the adult stage. The nominal threshold for early instar nymphs is __________ per square metre. 

 

E-Newsletter Sign Up

    Was this article helpful?

    Let us know if you liked the post. That's the only way we can improve.

    Related Articles

    Grasshopper management in canola: Thresholds, identification, and control strategies
    Grasshoppers, particularly the two-striped, clearwing, migratory and Packard’s species, can pose a significant threat to canola crops on the Canadian Prairies. This article describes the steps for grasshopper management in…
    Lygus nymphs: Which ones do you count?
    Please read the Canola Watch Fundamentals article on lygus for the latest on scouting, thresholds and timing. It includes tips to identify which lygus nymphs to include in counts.
    Insect update: Grasshopper, diamondback, lygus, CSPW
    Grasshoppers. If populations are significant and crop feeding has begun, a spray or bait application around field edges may be enough to reduce the threat. Grasshoppers are easier to manage…
    Grasshoppers
    A common insect pest in canola, grasshoppers should be scouted for, identified and insect counts can be considered per area (typically per square metre). Monitoring grasshopper populations in crops includes…