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Classical and augmentative biological control against ... - IOBC-WPRS

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Chapter 2<br />

Potential of <strong>biological</strong> <strong>control</strong> based on published research.<br />

2. Beneficials for <strong>augmentative</strong> bio<strong>control</strong> <strong>against</strong> insect pests.<br />

The grapevine case study<br />

Massimo Giorgini<br />

CNR, Istituto per la Protezione delle Piante, via Università 133, 80055 Portici (NA), Italy<br />

Bibliographic survey on <strong>augmentative</strong> <strong>biological</strong> <strong>control</strong> <strong>against</strong> arthropod pests in<br />

selected crops<br />

We carried out a preliminary bibliographic survey to quantify the literature on <strong>augmentative</strong><br />

<strong>biological</strong> <strong>control</strong> of pests published from 1973 to 2008. The survey was restricted to crops relevant<br />

to case studies of ENDURE. They included grapevine; orchards: apple <strong>and</strong> pear; arable crops: corn<br />

<strong>and</strong> wheat; field vegetables: carrot <strong>and</strong> onion. Augmentative <strong>biological</strong> <strong>control</strong> (Van Driesche &<br />

Bellows, 1996) comprises of inoculative augmentation (<strong>control</strong> being provided by the offspring of<br />

released organisms) <strong>and</strong> inundative augmentation (<strong>control</strong> expected to be performed by the<br />

organisms released, with little or no contribution by their offspring).<br />

Our bibliographic survey was conducted by using the CAB Abstracts database by entering the<br />

name of each crop <strong>and</strong> one key word selected from the following list in order to retrieve the<br />

maximum number of references. For each selected crop, the key words used for the bibliographic<br />

survey were: a) <strong>augmentative</strong> <strong>biological</strong> <strong>control</strong>; b) augmentation <strong>biological</strong> <strong>control</strong>; c) inoculative<br />

<strong>biological</strong> <strong>control</strong>; d) inundative <strong>biological</strong> <strong>control</strong>. The survey with these key words produced a<br />

very low number of results all of which were examined. For this reason we added two key words<br />

that were more general: e) insects <strong>biological</strong> <strong>control</strong>; f) mites <strong>biological</strong> <strong>control</strong>. For the searching<br />

criteria a to d, total records will be examined. In this case, given the extremely high number of<br />

records, only references within the period 1998-2008 were examined to select only the publications<br />

concerning the <strong>augmentative</strong> <strong>biological</strong> <strong>control</strong>. The results of this survey are reported in Appendix<br />

7.<br />

The analytical review of the scientific literature on <strong>augmentative</strong> <strong>biological</strong> <strong>control</strong>, presented<br />

in the rest of this chapter, was then focused on grapevine.<br />

Status of researches on augmentation of natural enemies to <strong>control</strong> arthropod pests in<br />

grapevine<br />

The references extracted from the CAB Abstracts database, following the criteria described in the<br />

previous paragraph, were examined to identify those concerning the use of natural enemies in<br />

augmentation <strong>biological</strong> <strong>control</strong> in grapevine. The abstracts of 607 references were examined <strong>and</strong><br />

only 70 papers reported data on application <strong>and</strong> efficiency of <strong>augmentative</strong> bio<strong>control</strong> (Table 5).<br />

12

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