COPIED FROM A POST ON PAGE ONE:
http://www.ces.ncsu.edu/wayne/agriculture/Poultry/NewsArt/art7-30.html
DARKLING BEETLE MANAGEMENT IN DEEP LITTER HOUSES
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Why on earth would anyone want to kill darkling beetles in their deep litter? It's they that lay eggs for MEALWORMS. I'd think the chickens and owners would love to have millions of mealworms in their litter, free and gratis.
My wife and I raise mealworms for all the songbirds in our yard. We feed them by the hundreds and the birds can't get enough, especially when they have babies.
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Never mind. I found my answer on Google:
http://ohioline.osu.edu/b853/b853_6.html
"Darkling Beetle
The darkling beetle or lesser mealworm, Alphitobius diaperinus (Panzer), is rapidly becoming more of a nuisance in the poultry operation. Large populations of beetles sometimes migrate into nearby residence areas, especially during litter clean-out time. Although beetles can fly up to one mile, most crawl at night from litter disposed to neighboring fields and homes.
Beetles are frequently associated with poultry feed, preferring grain and cereal products that are damp, moldy and slightly out of condition. Both adults and larvae consume poultry feed in amounts costly to the producer. Larvae are known as lesser mealworms.
Increased importance has been placed on control of this beetle. Both adult beetles and larvae act as reservoirs for many poultry pathogens and parasites. Scientists have been able to transmit the causative agent of acute leukosis (Marek's disease) in chickens with this beetle. Positive confirmation of the transmission has been made under both laboratory and field research conditions.
Marek's disease usually affects birds between three and four months old. Symptoms are characterized by various degrees of paralysis, most easily observed in legs and wings. Droopy wings, gasping, loss of weight, pallor and sometimes diarrhea are also symptoms. Birds severely affected may be found lying on their sides with one leg stretched forward and the other held behind. The disease affects both broiler and egg laying types of poultry. Losses can reach two percent of the flock per day, and mortality may exceed 30 percent of the flock within a few weeks.
Acute leukosis is highly contagious and has been shown to be airborne. Contamination may persist in the environment because the darkling beetle may serve as a reservoir for residual contamination. Beetles have been observed feeding on carcasses of poultry dead of leukosis, and it appears that beetles may become contaminated in the process. Adult beetles are capable of retaining the contamination and transmitting the leukosis when eaten by chickens, in the opinion of some scientists. Other diseases which are spread include the causative agents of avian influenza, salmonella, fowl pox, coccidiosis, botulism and new castle disease. They also act as vectors of cecal worms and avian tapeworms.
In the poultry house, the beetle can lay up to 800 eggs in litter during a 42-day period. Eggs develop into larvae in four to seven days. The life cycle requires about 42 to 97 days depending on temperature. Beetles live up to three months to a year. Adults are black or very dark, reddish- brown and about 1/4 inch long. Larvae are yellowish-brown (wireworm-like) up to 3/4 inch long and accumulate in dark corners of manure or litter, especially under sacks, in bins or in places where feed is stored. Pupation occurs in the litter, soil and side walls of poultry houses. They migrate frequently throughout the litter generally coming in soil contact.
Adult chickens and chicks are more likely to eat the beetles and their larvae than poults or turkeys. Consumption of beetles and larvae, rather than providing "extra protein" in the diet, actually has a negative effect on feed conversion and rate of gain according to research."