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BIOLOGICAL CONTROL BEETLES
In 1946, imported beetles were released against toxic St. Johnswort in northern California; by 1957, the weed had fallen to less than 1% of its former abundance- In 1997, NASA sent 64 desert beetles to Russia’s Mir space station with tiny wheels tracking their every movement; their movements helped scientists understand how light regulates biological clocks in microgravity
- In 1772, Benjamin Franklin sent Chinese tallow seeds to Savannah, Georgia; the government planted more along the Gulf in 1900, and the tree now covers 185,000 hectares
- Since 1971, Oregon has used a flea beetle against tansy ragwort; 7 years later, the state said the biocontrol had cut infestations by 90%In Oregon, a tiny flea beetle has emerged victorious in the battle against toxic tansy ragwort, a notorious invasive weed that has plagued ...21 Aug, 2026, 06.50 PM IST
- Since 1965, Florida has used the alligatorweed flea beetle to control invasive mats; once established, it can cause them to collapse within about 3 monthsA small but mighty insect, the alligatorweed flea beetle, has proven to be an efficient guardian against the spread of invasive alligatorwe...21 Aug, 2026, 06.40 PM IST
- In 1888, USDA sent an entomologist to Australia to collect vedalia beetles for California’s cottony cushion scale; within a year, the pest had sharply declinedThe cottony cushion scale insect threatened California's citrus growers with devastation. The USDA took action by sending a scientist to Au...21 Aug, 2026, 06.30 PM IST
- Since 1997, Florida has released Australian insects to help control melaleuca in the Everglades; its invaded range has shrunk by nearly 75% alongside herbicide and mechanical removalIn Florida's Everglades, Australian insects played a crucial role in curbing the spread of invasive melaleuca trees. By targeting these tre...14 Aug, 2026, 04.20 PM IST
- In 1988, USDA scientists released just 88 flea beetles in North Dakota; their descendants multiplied into hundreds of millions across North AmericaIn North Dakota, a targeted release of flea beetles marked the beginning of a successful biological control initiative. These beetles flour...11 Aug, 2026, 05.19 PM IST
- In the 1800s, Americans planted tamarisk for windbreaks and erosion control; by 2005, the tree had spread across western river systems and become a major management concernTamarisk was originally brought in for various practical applications, but it has since proliferated across western waterways. This invasiv...11 Aug, 2026, 05.14 PM IST
- In 1974, a Spainish rancher imported 2,000 kg of American crayfish from Louisiana. 50 years later, it has become an invasion nobody could stopAn American red swamp crayfish invasion reshaped Spain's Guadalquivir River basin and Doñana National Park. This destructive biological inv...04 Aug, 2026, 02.34 PM IST
- In 2001, a USDA scientist released beetles to destroy an invasive tree, but they eliminated 94% of an endangered bird's habitat along one riverAn invasive beetle introduced to control tamarisk trees has devastated flycatcher nesting grounds. This beetle, released by the USDA, succe...28 Jul, 2026, 04.43 PM IST
- In the early 2000s, researchers found that holding their breath for days helps insects stay aliveMore than twenty years after those early studies attracted attention, scientists continue investigating how insects breathe, survive, and a...27 Jul, 2026, 06.03 PM IST
- In 1935, an Australian entomologist shipped 102 cane toads from Hawaii to fight crop beetles; 2,400 were released before anyone tested the planAustralian scientists introduced toxic cane toads to control sugar cane pests in 1935. These toads failed to eat the target beetles and spr...27 Jul, 2026, 05.56 PM IST
- Hawaii, in the late 1800s, planted Leucaena trees for fodder and fuelwood, but scientists now say the invasive trees have replaced native habitats that evolved nowhere else on EarthHawaii's idyllic image belies a significant ecological challenge: Leucaena, an introduced shrub, now covers 10% of the islands. Brought for...04 Jul, 2026, 04.03 PM IST
- In 1950, amid the Cold War, a tiny beetle from the US was destroying potato crops across East Germany. Then began one of history's strangest propaganda campaignsIn 1950, a striped potato beetle became the centre of one of the Cold War's most unusual propaganda campaigns after East Germany accused th...19 Jun, 2026, 12.59 PM IST
- Why Ladybugs Suddenly Take Over Your Home Every FallLady beetles, often seen as garden helpers, can become unwelcome guests indoors. These insects seek shelter in homes during autumn. While b...05 May, 2026, 06.37 PM IST
- The Mystery of “Zombie Fungi” That Control Insect Behavior Is ExpandingA fungus from the Ophiocordyceps genus is systematically altering insect behavior, compelling them to leave colonies and position themselve...06 Apr, 2026, 03.59 PM IST
- Why Dung Beetles Are Digging Deeper and What It Reveals About Surviving a Hotter PlanetTiny dung beetles are showing remarkable adaptation to a warming planet. These insects are digging deeper nests to protect their young from...04 Apr, 2026, 07.05 PM IST
- The world of fireflies: Unraveling the secrets of their bioluminescenceThe firefly, a bioluminescent beetle, has caught the attention of entomologists seeking to understand the diversity and ecology of this fas...30 Jul, 2023, 09.54 AM IST
- Scientists find why some mushrooms glow in darkThe researchers found that the mushrooms' glow is under the control of a temperature-compensated circadian clock.20 Mar, 2015, 05.55 PM IST
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