Results 101 to 110 of about 9,798 (222)

Was Dan Janzen (1977) right about aphid clones being a "super-organism", i.e. a single "evolutionary individual"? : new insights from the use of molecular marker systems [PDF]

open access: yes, 2008
Dan Janzen proposed in a paper in 1977 (loc. cit.), that a clone of aphids and for that matter dandelions consists, respectively, of one large ‘super-organism’.
Loxdale, Hugh D.
core  

Les principaux ravageurs des choux pommés [Brassica oleracea var capitata subs sabouda) à Bukavu et ses environs [PDF]

open access: yesTropicultura, 2000
The Major Pests of Cabbage (Brassica oleracea var. capitata subs sabouda) in Bukavu and Around. As stated by farmers growing vegetables and as observed on local markets, cabbage in Bukavu and around is damaged by pests.
Walangululu, JM., Mushagalusa, GN.
doaj  

Plant growth-promoting Bacillus suppress Brevicoryne brassicae field infestation and trigger density-dependent and density-independent natural enemy responses [PDF]

open access: yes, 2016
Soil-dwelling Plant Growth Promoting (PGP) Bacillus live in intimate associations with plants; some species offer direct benefits via plant growth promotion while others confer protection against various pathogens.
Finch, Paul   +3 more
core   +1 more source

Influence of prey host plant on a generalist aphidophagous predator: Episyrphus balteatus (Diptera: Syrphidae)

open access: yesEuropean Journal of Entomology, 2002
Secondary plant metabolites (allelochemicals) play a major role in plant-insect interactions. Glucosinolates (GLS) and their degradation products from Brassica species are attractants and feeding stimulants for Brassicaceae specialist insects but are ...
Nicolas VANHAELEN   +2 more
doaj   +1 more source

Sustainable plant protection for increased food security in a changing climate [PDF]

open access: yes, 2008
The global climate is changing. Rising temperatures in temperate regions are making headlines, but there are a host of changes that may have even greater impact on a global scale, particularly in regions where food security is already delicately ...
Bandara, PB   +5 more
core  

A catalogue of aphid parasitoids (Hymenoptera: Braconidae: Aphidiinae) from India [PDF]

open access: yes, 2011
A catalogue of aphidiine parasitoids (Hymenoptera: Braconidae: Aphidiinae) associated with various aphids species occurring in India was compiled. The present catalogue with 125 species under 22 genera has been further reinforced with not only all the ...
Akhtar, Mir Samim   +2 more
core   +1 more source

Bedeutung und Bekämpfung von Schadinsekten an Winterweizen und Winterraps in Schleswig-Holstein, 1999-2001, und der Trend der Insektizid-Behandlungen von 1999-2004 [PDF]

open access: yes, 2008
In the average of 1999 to 2004 winter wheat covered 64 % of the agricultural land of Schleswig-Holstein (331.000 ha), winter oilseed rape 31 %. These two important crops (covering 95 % of the acreage) were attacked in 1999 to 2001 by a) wheat: cereal ...
Basedow, Thies, Kirch, Gerd
core  

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