introduction introduction material and methods ...

54 downloads 0 Views 1MB Size Report
Plasticine. P. spumarius on S. verrucosa. P. spumarius on M. arabica. Data analysis: The Cox PHM was estimated through likelihood ratio test and using coxph ...
INTRODUCTION

GOAL

The spittlebug Philaenus spumarius (L) has been identified as vector for the (i) Evaluate the survival of adults developing on two native damaging bacterium Xylella fastidiosa in Europe. The knowledge about this insect and common plants in Europe. biology and survival when developing on native plants from Europe is crucial to (ii) Evaluate the effect of different temperatures on the P. establish ground cover management strategies in olive orchards to control the X. spumarius survival. fastidiosa spread. Survival experiment

MATERIAL AND METHODS Plant resources

New born adults ( > < <
> >

> > > < =

S. verrucosa 21⁰C

0.4 4⁰C 21⁰C 25⁰C 21⁰C 25⁰C 21⁰C

Water 4⁰C Water 21⁰C Water 25⁰C A M. arabica 21⁰C M. arabica 25⁰C S. verrucosa 21⁰C

S. verrucosa 21 ⁰C

M. arabica 25⁰C

M. arabica 21⁰C

0.4

0.0

S. verrucosa

M. arabica

M. arabica

Water

Water

10 10

M. arabica 21⁰C

S(t)

15 15

Water 25⁰C

Treatment

Water 21⁰C

0.8

0.6

B

0.6

20 20

Water

Longevity (days)

0.8

25 25

00

Water 21⁰C Water 4 ⁰C

Water 4⁰C

1.0

1.0

30 30

55

Table 1. Cox PHM (likelihood ratio = 198.1, df = 5, p < 0.001). The treatment A originated a higher (>), lower ( > > < =

CONCLUSION Results indicated that the survival of P. spumarius could improve when developing on different plants species. Higher temperatures negatively affected the P. spumarius survival

Suggest Documents