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Large numbers of newly flight-mature alate alienicolae of Myzus persicae (Sulz.) were flown in a flight chamber for 5 or 10 h. Flown aphids marked wit...
Read moreChanges in numbers of cereal aphids (mainly Sitobion avenae (F.) and Metopolophium dirhodum (Wlk.) but including also Rhopalosiphum padi (L.)) were me...
Read moreThe European noble crayfish Astacus astacus is threatened by crayfish plague caused by the oomycete Aphanomyces astaci, which is spread by the invasiv...
Read moreThe cage aquaculture of rainbow trout, Salmo gairdneri Richardson, enriched the mesotrophic Glebokie Lake in Poland with carbon, phosphorus and nitoge...
Read moreThe influence of adults of Coccinella californica Mannh. on the spread of a plant virus (bean yellow mosaic virus) transmitted by Acyrthosiphon pisum ...
Read moreAttempts to restore marine ecosystems are increasing, but the success of projects remains variable. For marine invertebrates, the establishment of sel...
Read moreVegetation colonization in Clipsham Old Quarry, near the Leicestershire/Lincolnshire border, was studied in 1980-84. Quarrying finished about 40 years...
Read moreAdults of Altica (Haltica) carduorum Guer. from France were released in 1969 and 1970 on Cirsium arvense (creeping thistle) at Silwood Park, Berkshire...
Read moreA population of 570 adult beetles (Cyrtobagous sp.) released onto plants of Salvinia molesta in field cages declined to 40 adults over 7 months, and i...
Read moreIn investigations in cider-apple orchards in southern England in winter 1971-73, groups of up to 30 larvae of Cydia pomonella (L.) were allowed to spi...
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