scholarly journals Biological control agents (BCAs) of verticillium wilt: influence of application rates and delivery method on plant protection, triggering of host defence mechanisms and rhizosphere populations of BCAs

2014 ◽  
Vol 63 (5) ◽  
pp. 1062-1069 ◽  
Author(s):  
D. J. Angelopoulou ◽  
E. J. Naska ◽  
E. J. Paplomatas ◽  
S. E. Tjamos
Keyword(s):  
Biological Control ◽  
Verticillium Wilt ◽  
Plant Protection ◽  
Host Defence ◽  
Biological Control Agents ◽  
Delivery Method ◽  
Defence Mechanisms ◽  
Application Rates

scholarly journals Biological control of important fungal diseases of potato and raspberry by two Bacillus velezensis strains

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11578
Author(s):  
Anzhela Asaturova ◽  
Margarita Shternshis ◽  
Vera Tsvetkova ◽  
Tatyana Shpatova ◽  
Vladislava Maslennikova ◽  
...  
Keyword(s):  
Biological Control ◽  
Western Siberia ◽  
Plant Protection ◽  
Disease Incidence ◽  
Weather Conditions ◽  
Small Scale ◽  
Biological Control Agents ◽  
Bacterial Strains ◽  
Red Raspberry ◽  
Bacillus Velezensis

Stem canker and black scurf caused by Rhizoctonia solani are the important diseases in potato, while spur blight caused by Didymella applanata is a major disease in red raspberry. In Western Siberia, both crops are grown predominantly in small-scale farming that requires maximal usage of biological products for plant protection instead of chemicals. We evaluated two promising Bacillus velezensis strains BZR 336 g and BZR 517 isolated in the south of Russia (45°1′N, 38°59′E) for their biological control potentials against the potato and red raspberry diseases under the more severe weather conditions of Western Siberia (55°1′N, 82°55′ E). We tested two techniques to apply biocontrol agents: (1) coating the seeds (potato tubers) and (2) spraying over the plants (raspberry canes). In each case, we estimated B. velezensis strains on two plant cultivars differed by the disease resistance. The degree of B. velezensis influence on disease incidence and severity depended on the bacterial strain, the protected plant, and its cultivar. We also demonstrated that two B. velezensis strains significantly stimulated plant growth of potato, which contributed to the plant productivity on both cultivars. The BZR 336 g strain affected the potato productivity more than the BZR 517 strain. Under the influence of both bacterial strains, raspberry yield was significantly higher compared to the control on the susceptible cultivar. These findings indicated that two southern B. velezensis strains had proved their efficacy as biological control agents in the control of the serious fungal infection of potato and raspberry plants under the more severe ecological conditions of Western Siberia. For the first time, we demonstrated B. velezensis strains potential for use as biological control agents against R. solani on potato, and against D. applanata on red raspberry.

scholarly journals Hidden arsenal endosymbionts in arthropods their role and possible implications for biological control success

2014 ◽  
Vol 67 ◽  
pp. 204-212 ◽  
Author(s):  
M.R. McNeill ◽  
N.K. Richards ◽  
J.A. White ◽  
A. Laugraud
Keyword(s):  
Biological Control ◽  
New Zealand ◽  
Insect Pests ◽  
Plant Protection ◽  
Biological Control Agents ◽  
Important Pest ◽  
Clover Root ◽  
Bacterial Endosymbionts ◽  
Insect Biology

Bacterial endosymbionts are common among arthropods including many important pest and beneficial insect species These symbionts provide either an obligate function performing essential reproductive or nutritive roles or are facultative influencing the ecology and evolution of their hosts in ways that are likely to impact biological control This includes resistance against parasitoids and modification to parasitoid fecundity Recent research has shown that endosymbionts are associated with exotic weevil pests found in New Zealand pasture including the clover root weevil Sitona obsoletus (S lepidus) The role of endosymbionts in insect biology and impacts on biological control is reviewed For New Zealand plant protection scientists endosymbiont research capability will provide important insights into interactions among insect pests plant hosts and biological control agents which may provide management opportunities for existing and future pest incursions in New Zealand

Yellow Brazilian Pepper-tree Leaf Galler (suggested common name) Calophya latiforceps Burckhardt (Insecta: Hemiptera: Calophyidae: Calophyinae)

EDIS ◽  
2017 ◽  
Vol 2017 (6) ◽  
Author(s):  
James P. Cuda ◽  
Patricia Prade ◽  
Carey R. Minteer-Killian
Keyword(s):  
Biological Control ◽  
North America ◽  
Natural Enemies ◽  
Host Plants ◽  
Classical Biological Control ◽  
Biological Control Agents ◽  
Pepper Tree ◽  
Brazilian Pepper ◽  
Close Relatives ◽  
Tree Leaf

In the late 1970s, Brazilian peppertree, Schinus terebinthifolia Raddi (Sapindales: Anacardiaceae), was targeted for classical biological control in Florida because its invasive properties (see Host Plants) are consistent with escape from natural enemies (Williams 1954), and there are no native Schinus spp. in North America. The lack of native close relatives should minimize the risk of damage to non-target plants from introduced biological control agents (Pemberton 2000). [...]

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