New APVMA permit for use of dimethoate to control mirids in faba beans.

In response to the recent con­fir­ma­tion of the dam­age poten­tial of green mirids in faba beans, Pulse Aus­tralia has suc­cess­fully applied to the APVMA for a per­mit to allow the use of dimethoate for the con­trol of mirids in faba beans (PER82378). The per­mit is active from 1 June 2016 to 31 May 2021, and is applic­a­ble in all states,… Read more »

Effective aeration cooling of stored grain

Aer­a­tion cool­ing uses fans on grain stor­ages to lower grain tem­per­a­tures, which helps main­tain grain qual­ity and reduce stor­age pest prob­lems. When cool­ing grain using aer­a­tion, the aim is to reduce and keep grain tem­per­a­tures below the fol­low­ing sea­sonal tar­gets: Win­ter crops (stored November-March): below 23°C Sum­mer crops (stored April-September): below 15°C Most insect stor­age pests pre­fer tem­per­a­tures from 25–35°C (peak breed­ing… Read more »

Industry award for Hugh Brier

Hugh Brier, Depart­ment of Agri­cul­ture and Fish­eries senior ento­mol­o­gist based at Kingaroy, has been recog­nised for his out­stand­ing con­tri­bu­tion to the sum­mer grains indus­tries with an award at the recent Aus­tralian Sum­mer Grains Con­fer­ence. Hugh has ded­i­cated his career with DAF to sup­port­ing the grains indus­tries and it is fan­tas­tic to see this con­tri­bu­tion again acknowl­edged by indus­try (Hugh was… Read more »

An infestation of entomologists at Kingaroy

It seems the warm weather is not only caus­ing the pests to mul­ti­ply in the South Burnett—the Depart­ment of Agri­cul­ture and Fish­eries (DAF) Kingaroy Research Sta­tion has tripled its ento­mol­o­gists! Hugh ‘Bugs’ Brier has now been joined by Dr Liz Williams (research ento­mol­o­gist) and Trevor Volp (tech­ni­cal offi­cer – ento­mol­ogy). Both posi­tions were made pos­si­ble by the GRDC, through the… Read more »

Bean podborer on the move in mungbeans

Bean pod­borer (Maruca vit­rata) have been observed in large num­bers (>20/m2) in flowering/podding mung­beans planted from Jan­u­ary onwards in the Bur­nett region. They are likely to be present in other coastal/subcoastal regions such as the Bur­dekin, Cal­lide Val­ley and the Wide Bay/Burnett (par­tic­u­larly in late-planted crops), and to a lesser extent in the east­ern Dar­ling Downs, and Emer­ald in Cen­tral… Read more »

New insecticides for the control of silverleaf whitefly (SLW) in cotton, and considerations for resistance management

Jamie Hopkinson   January 8, 2016   Comments Off on New insecticides for the control of silverleaf whitefly (SLW) in cotton, and considerations for resistance management

Two new insec­ti­cides have recently been reg­is­tered to con­trol Bemisia tabaci B-biotype in cot­ton. Prod­uct Insec­ti­cide group Active ingre­di­ent Pest Exirel® anthranilic diamide (Group 28) cyantranilip­role SLW, Heli­cov­erpa, cot­ton aphid (sup­pres­sion only) Starkle® neon­i­coti­noid (Group 4A) dinote­fu­ran SLW & green mirid Exirel® was reg­is­tered for cot­ton use in the 2013/14 sea­son, and Starkle® has been reg­is­tered for the cur­rent cot­ton sea­son for ground… Read more »

Confirmation of green mirid damage potential in faba beans

Over the past two win­ters, agron­o­mists and grow­ers have been ask­ing whether the green mirids that they are find­ing in faba beans are doing any dam­age. Until now, the short answer to that was that we sim­ply didn’t know. In 2014 Depart­ment of Agri­cul­ture and Fish­eries (DAF) Ento­mol­ogy con­ducted a pre­lim­i­nary trial to deter­mine if green mirids could cause the… Read more »

Thrip damage to early summer crops

Melina Miles   November 4, 2015   Comments Off on Thrip damage to early summer crops

Emerg­ing and veg­e­ta­tive sum­mer crops in close prox­im­ity to unhar­vested win­ter crop are at risk of thrip dam­age, but the dam­age is largely cos­metic and rarely war­rants treat­ing. Thrips breed up in win­ter cere­als, and par­tic­u­larly after rain, will move out of the win­ter crops in huge num­bers. Most of you will be famil­iar with the joys of thrips bit­ing… Read more »

Predicting helicoverpa development rate in finishing and late pulse/canola crops

Melina Miles   October 20, 2015   Comments Off on Predicting helicoverpa development rate in finishing and late pulse/canola crops

As the early and mois­ture stressed crops fin­ish up, and those that were under a storm kick on, it is chal­leng­ing to try and esti­mate whether small heli­cov­erpa lar­vae in the crop should be con­trolled, or whether the crop will fin­ish up before they get to a dam­ag­ing size. There are a few things to keep in mind when mak­ing these… Read more »

Helicoverpa armigera emergence from diapause boosts trap catches.

Melina Miles   October 20, 2015   Comments Off on Helicoverpa armigera emergence from diapause boosts trap catches.

Heli­cov­erpa moth activ­ity to 19 Octo­ber, 2015. Over the past 1–2 weeks we have seen increas­ing H. armigera catches in the pheromone traps across Queens­land (Qld) and north­ern New South Wales (NSW). The series of graphs of H. armigera and H. punctig­era trap catches from August to 19 Octo­ber are below. Included with these graphs are the cur­rent pre­dic­tions for the level… Read more »