GRASS GRUB: COPING WITHOUT CHEMICAL CONTROL
نویسندگان
چکیده
منابع مشابه
POPULATION STUDIES OF GRASS GRUB (Costelytra zealandica) AND BLACK BEETLE (Heteronychus arator) (COLEOPTERA: SCARABAEIDAE)
Population studies of grass grub and black beetle have revealed simple patterns of population determination. Populations fluctuate in response to variations in soil moisture and temperature. The upper limit to population growth is set by density dependent factors (larval mortality of grass grub and variation in natality of black beetle). Parasites and predators appear to be generally unimportan...
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Serratia entomophila and Serratia proteamaculans (Enterobacteriaceae) cause amber disease in the grass grub Costelytra zealandica (Coleoptera: Scarabaeidae), an important pasture pest in New Zealand. Larval disease symptoms include cessation of feeding, clearance of the gut, amber coloration, and eventual death. A 155-kb plasmid, pADAP, carries the genes sepA, sepB, and sepC, which are essentia...
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A llelopathy is defined by most scientists as the adverse effect of one plant species on another through production of phytotoxins (allelochemicals), although more expansive definitions have been formulated. Allelopathy is but one component of plant/plant interference, the other being competition for resources such as nutrients, light, and water. Allelopathy has been a recognized phenomenon for...
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Chemistry is by far the most productive science concerning the number of publications. A closer look at chemical papers reveals that most papers deal with new substances. The rapid growth of chemical knowledge seriously challenges all institutions and individuals concerned with chemistry. Chemistry documentation following the principle of completeness is required to schematize chemical informat...
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ژورنال
عنوان ژورنال: Proceedings of the New Zealand Grassland Association
سال: 1983
ISSN: 1179-4577,0369-3902
DOI: 10.33584/jnzg.1983.44.1626