BBSRC-FAPESP JOINT PUMP–PRIMING AWARDS for AMR

and INSECT PEST RESISTANCE IN AGRICULTURE:

Understanding and managing resistance, including novel

methods, for pathogen and pest control.

PARTNERSHIP BUILDING WORKSHOP

Dr. Renato Beozzo BassaneziPlant Pathologist - Epidemiologist

Fund for Citrus Protection

SÃO PAULO STATE

34% orange production

56% OJ production

76% OJ international trade

Orange area: 402,566 ha

Orange production4: 374 million 90-lb boxes

Citrus farms: 11,500

Jobs: 200,000 (direct and indirect)

Main challenge: Diseases and Pest control

BBSRC-FAPESP JOINT PUMP–PRIMING AWARDS for AMR and INSECT PEST RESISTANCE IN AGRICULTURE:

Understanding and managing resistance, including novel methods, for pathogen and pest control.

Intelligence center

Reference in research for citrus diseases and pests

40 year existence

Maintained by growers and the juice industry

Fundecitrus

Research

DiagnosticService

Tree Inventoryand Forecast

Education andCommunication

Extension andTechnology

Transfer

BBSRC-FAPESP JOINT PUMP–PRIMING AWARDS for AMR and INSECT PEST RESISTANCE IN AGRICULTURE:

Understanding and managing resistance, including novel methods, for pathogen and pest control.

12 Researchers:

-Phytopathology (Diagnosis, Epidemiology, Plant-Pathogen Interaction, Chemical and cultural control)

-Biotechnology (Plant breeding for resistance and repellence)

-Entomology (Insect behaviour, Chemical and cultural control, Biological control)

-Engineering (Spray technology)

-Chemistry (Semiochemical – attractant and repellent)

Diagnosis and Biotechnology Labs Insect Ecology Lab

Biological Control Lab

BBSRC-FAPESP JOINT PUMP–PRIMING AWARDS for AMR and INSECT PEST RESISTANCE IN AGRICULTURE:

Understanding and managing resistance, including novel methods, for pathogen and pest control.

Huanglongbing Candidatus Liberibacter asiaticus restrict to the plant phloem

Transmitted by the Asian citrus psyllid Diaphorina citri

Rapid dissemination

Severe fruit damage

No cure

No resistant variety of citrus

Preventive:

Inoculum reduction

Vector control

BBSRC-FAPESP JOINT PUMP–PRIMING AWARDS for AMR and INSECT PEST RESISTANCE IN AGRICULTURE:

Understanding and managing resistance, including novel methods, for pathogen and pest control.

BBSRC-FAPESP JOINT PUMP–PRIMING AWARDS for AMR and INSECT PEST RESISTANCE IN AGRICULTURE:

Understanding and managing resistance, including novel methods, for pathogen and pest control.

The incidence progress of HLB depends on the local and regional control of ACP and inoculum

sources

The low accomplishment, coordination and

synchronism of citrus growers on regional

control of ACP and elimination of diseased

trees favors the infestation of groves with

HLB management with infectious ACP and

increases the probability of new infections.

BBSRC-FAPESP JOINT PUMP–PRIMING AWARDS for AMR and INSECT PEST RESISTANCE IN AGRICULTURE:

Understanding and managing resistance, including novel methods, for pathogen and pest control.

Concentration of diseased trees at the edge of citrus groves indicates that the primary infection

by migrant vector is the most important drive of the HLB epidemics

The main subject of research is how to avoid

or minimize the primary infections, specially at

the grove edge:

-Coordinated vector control (Alert System)

-External actions of inoculum removal or ACP

control

-Strategies at the grove edge to avoid ACP

penetration (planting direction, repellents, barriers)

-Strategies to avoid inoculation by the vector

(vector control with less impact in the

environment, no residue, no selection of resistant

insects at the grove edge)

-Strategies to minimize crop damage (prolong

grove life span)

Diaphorina citri

Push-and-pull strategy (sweet orange repellent to the psyllid and Murraya RNAi edge)

Citrus with anti-Liberibacter genesOrange jasmine

lethal to psyllidsOrange grove

Huanglongbing

BBSRC-FAPESP JOINT PUMP–PRIMING AWARDS for AMR and INSECT PEST RESISTANCE IN AGRICULTURE:

Understanding and managing resistance, including novel methods, for pathogen and pest control.

BBSRC-FAPESP JOINT PUMP–PRIMING AWARDS for AMR and INSECT PEST RESISTANCE IN AGRICULTURE:

Understanding and managing resistance, including novel methods, for pathogen and pest control.

Huanglongbing Black spot Citrus canker

Both diseases are controlled with chemical applications

Pest resistance to chemicals is a big issue Few molecules available and the restrictions to use them has increased

Low expectative of new molecules development by chemical companies

Real need to research alternative methods

Diaphorina citri

Essential oils Kaolin Bioinsecticides Parasitoids

Rational sprays(volume and timing)Pheromone

Leprosis

Brevipalpus yothersi