Various experts have expressed their views about the compatibility
and advantage of biotech crops especially Bt crops with
other resistance management strategies during the "Trainers
Training Workshop on Insecticide Resistance Management (IRM)
in Vegetables" held last August 16, 2011 in Los Baños,
Dr. John Andaloro of the Insecticide
Resistance Action Committee (IRAC) International said
that Bt crops are great for IRM because they essentially
have a different mode of action and can be considered as
a rotation partner. "From a resistance management point
of view, it's actually very conducive because they wipe
out (the resistant insects). If an insect which is resistant
to the chemical pesticide such as diamide or pyrethroid
feeds on a Bt crop, it gets killed. So it is a great part
of integrated pest management and also insecticide resistance
management," said Dr. Andaloro.
Entomology expert and University
of the Philippines Los Baños (UPLB) Chancellor Dr. Luis
Rey Velasco, in his keynote address asserted that "Bt
corn contributes in IRM because its accompanying principles,
high dose and refuge system, is a huge help in delaying
the development of resistant insects."
Dr. Lourdes Taylo, study leader from UPLB in response to
a query on how Bt eggplant can help in Integrated Pest Management
(IPM) said that, "The foundation of a good IPM is a
resistant variety. The use of Bt eggplant will complement
the use of biological control as there will be accompanying
reduction in frequency of insecticide spray applications."
IPM is a vital part of farming because its goal is to manage
the insect pest damage with the rational integration of
two or more tactics with least negative impact on beneficial
non-target organisms. Various methods are employed for IPM
including the use of biological control agents.
The training was part of a series of IRM workshops undertaken
in major eggplant and cabbage production areas nationwide.
The workshop at Los Baños was organized by CropLife
Philippines, IRAC Int., and the Department of Agriculture
Region 4 and was attended by municipal and provincial agriculture
officers, local government and company agriculture extension
workers, and farmers. (Jenny
A. Panopio and Sophia