HORTICULTURE

HORTICULTURE SCIENCE

ENTOMOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Predators as nymphs and adults; larvae have unusual mouthparts; help significantly to control mosquito populations
A
Odonata-Dragonflies and Damselflies
B
Plecoptera-Stoneflies
C
Hemiptera-True Bugs
D
Trichoptera-Caddisfly
Explanation: 

Detailed explanation-1: -Though dragonflies are predators, they themselves must be wary of many predators. Birds, lizards, frogs, spiders, fish, water bugs, and even other large dragonflies have all been seen eating odonates.

Detailed explanation-2: -The mouthparts of immatures of dragonflies and damselflies (Odonata) are prognathous and show the typical biting–chewing style of insects.

Detailed explanation-3: -Dragonflies eat numerous pest insects including mosquitoes. Dragonfly larvae, “nymphs, ‘’ feed on mosquito larvae, and adult dragonflies feed on adult mosquitoes. Dragonflies eat up to 20% of their weight every day. They are ambush predators and use vegetation to find food.

Detailed explanation-4: -All Odonata have aquatic larvae called naiads (nymphs), and all of them, larvae and adults, are carnivorous. The adults can land, but rarely walk. Their legs are specialised for catching prey.

There is 1 question to complete.