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BRUCE

ZIMMERMAN

Host of

the

BRUCE

ZIMMERMAN

Host of

the

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Terranem

for Biological Control of White Grubs

 Terranem consists of the insect-parasitic nemotode Heterorhabditis bacteriophora.  This nematode can biologically control the larvae of many species of white grubs, and is especially effective against the larvae of the Japanese beetle (Popillia japonica Newman.)  Japanese beetle larvae can cause extensive damage to grass by eating the root hairs of the plants,  making it more difficult to absorb water and nutrients.  Other animals such as moles, birds, skunks, and opossums can compound the problem by leaving trails of destruction while searching the soil for grubs.  Terranem can help you put a stop to this! 

How does Terranem work?

The nematode actively searches for insect larvae and then enters a larva through a natural body opening, sometimes directly through the skin.  Once inside the  

larva the nematode excretes specific bacteria from its digestive tract before its starts to feed.  The bacteria  multiply very rapidly and convert the host tissue into products that the nematodes take up and use for food.  The larva dies within a few days and the colour changes from white-beige to orange-red or red-brown. The nematodes multiply and develop with the dead insect.  As soon as the nematodes are in the infectious third stage, they leave the old host and start searching for new larvae.  When there are no new hosts present, the nematode population will slowly decrease.

Application period

Two factors determine the optimal application period:

- soil temperature

- the development stage of the target host.

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