Other possibility may include presence of pest like
Indian meal moth (Caron, 1992).
Sex pheromone secondary components of
Indian meal moth Plodia interpunctella in China.
The
Indian meal moth, Plodia interpunctella (Hubner), is widely considered to be one of the most economically important stored dry food pests.
"Following our investigation we determined the insect was a common
Indian meal moth," he said.
it is my ahem understanding that the Clif people are aware of the
Indian Meal Moth problem.
In a series of experiments, Liu tested phosphine fumigation under high levels of oxygen against four insects and at different life stages: western flower thrips adults and larvae, leaf miner pupae, grape mealy bug eggs, and
Indian meal moth eggs and pupae.
Behavioral and reproductive effects of ultrasound on the
Indian meal moth, Plodia interpunctella.
The
Indian meal moth, Plodia interpunctella (Hu'bner), is a major economic insect pest of stored products (Rees, 2004).
His target is the
Indian meal moth, the number one worldwide pest of such stored products as nuts, grains, chocolate, and birdseed.
In a study conducted by the U of M Biosystems and Agricultural Engineering Department and the U of M Entomology Department, graduate students assessed the survivability of
Indian meal moth larvae on three diets: 100 percent whole corn kernels, whole kernels mixed with five to seven percent broken kernels, and 100 percent broken kernels.
In addition to controlling roaches, the product eliminates stored product pests at the larval stage, including:
Indian meal moth, saw-toothed grain beetle, red flour beetle, and others.