National Plant Protection Centre

Department of Agriculture, Ministry of Agriculture & Forests

Nppc-Header-Dzongkha

National Plant Protection Centre

Department of Agriculture, Ministry of Agriculture & Forests

Beneficial Insects

Beneficial Insect

Description

Crops/Host

Image

Ladybird beetle

Adult lady beetles are oval shaped and most are orange or reddish with black markings , the spot pattern is usually 1-4-2, on the orange or red forewings. Both adult and the larvae predate upon aphids in different crops , immature scale insect, mealy bugs, mites and other soft-bodied insect pests as well as insect eggs.

Red tree Ant

The red ant, Oecophylla smaragdina ( Fabricius) was used by the Chinese in citrus grooves to control various foliage feeding pests.This species was also used by the date palm growers of Yemen. In Bhutan these Red tree ants are present in citrus orchards and they are effective predators of the Citrus Shield  bug.

Assassin Bug

Assassin bugs are generally black or brown, but many are brightly colored. The head is elongate with a short, curved beak. Nymphs are just as effective in controlling pests as adults. All species are predaceous and attack a wide variety of insects. They will inflict a painful bite if handled

Praying Mantids

Prying Mantids are usually large insects. Some are brown, others are green and some are a mottled color. The front legs are covered with spines and modified for grasping and holding their prey. Mantids are the only insects that have a freely moveable head, and it has a characteristic triangular shape. Mantids wait for their prey with the front legs in an upraised position. Thus the name praying mantids. 

Syrphid flies

Syrphid flies are commonly found on flowers and are also known as flower flies or hover flies. The flies vary greatly in color and size, but most are yellow with brown or black bands on the abdomen. Many resemble wasps, others closely resemble bees, but none sting. The flies have the ability to hover in flight for long periods. Many syrphid fly larvae are predaceous, especially on aphids. The larvae are maggot-like, have no legs or visible head and are a greenish, or light translucent color 

Lace wings

Common Lace wings( Green Lace Wings) are common insects, found on weeds, cultivated crops and shrubs. Most are greenish with copper-colored eyes. The wings are transparent with many veins, which give them the name lacewings. Most are relatively slow flyers. The adults may be predaceous or feed on pollen.

Damsel fly

Damsel fly
It looks yellowish to brownish in color with prominent eyes. They are important predators, feeding on a wide variety of insects including aphids and caterpillars.

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Program Director

Program Director

Mrs. Yeshey Dema

Mrs. Yeshey Dema joined the civil service on 26th February 1996. She headed the Soil Fertility Unit, NSSC from 2008 till 2013. In 2013, she was transferred to the National Plant Protection Centre as the Program Director. She holds M. Phil in Soil Science from the University of Reading, UK.