MGK recently released Tobex, the first darkling beetle product on the market that contains an insect growth regulator (IGR) with the adulticide. Insect growth regulators are chemicals that inhibit the life cycle of the insect and interrupts the insect’s growth into an adult. Insect growth regulators are usually used in conjunction with adulticides to implement control over multiple generations of the target insect.

While IGR is often used as a general term, not all IGRs are created equal. Juvenile hormone (JH) mimics, chitin synthesis inhibitors (CSI), and anti-juvenile hormone agents are all IGRs, but they don’t cause the same effects in immature insects. Tobex contains MGK’s NyGuard (pyriproxyfen) as the IGR which is a JH mimic. To use darkling beetles as an example, instead of molting into pupae, NyGuard keeps mealworms in their larval state. This is important information to remember after an application of Tobex. Darkling beetle larvae will grow to be larger and thicker than they are normally observed, as they are unable to develop into successful pupae. Additionally, when darkling beetles are kept in the soft-bodied larvae stage they will be easier to kill on the second application. By using an insecticide with an IGR to control your darkling beetle problem, you’re getting more than just a kill – you’re getting better control of future generations.

Related Posts

Why is spider web removal important?

Have you ever wondered why spider web removal is an important part of controlling spiders? Here are a few key reasons why: ·        It is a mechanical control method for egg sacs and...

Read More

PestWorld 2019

As PestWorld 2019 kicks off in San Diego for its 89th year, we are reminded of how large our industry is – from pest control professionals, to manufacturing, to distribution – and how important...

Read More

MGK INTRODUCES POWERFUL MOSQUITO LARVICIDE — SUMILARV® 0.5G

Minneapolis, August 26, 2019 — MGK (www.mgk.com) today introduced Sumilarv® 0.5G, a mosquito larvicide that delivers a distinct mode of action and sets new standards for efficacy and duration of...

Read More

chevron-right