Lobesia Botrana

Question 1

European vine moth, grape berry moth

Answer 1

Lobesia botrana

Question 2

Describe Lobesia Botrana

Answer 2

Forewings creamish white with brown, olive brown, blackish and bluish-grey markings; hindwings dark brownish grey in female, whitish grey in male.

Question 3

Answer 3

Lobesia Botrana

Question 4

How many larval stages for Lobesia Botrana?

Answer 4

5

Question 5

Describe the pupa of lobesia botrana

Answer 5

yellowish brown to dark brown

Question 6

Describe the distribution of lobesia botrana

Answer 6

widely distributed in central and southern Europe, North Africa, Minor Asia. An important pest in warm dry regions

Question 7

How many generations in one year

Answer 7

3

Question 8

Discuss the difference between the First generation and the second/third

Answer 8

The adults emerge in spring (April) and are mainly active at twilight. The first generation eggs are laid mainly on flower buds (they hatch after 7-11 days. The second and third generation are laid on grapes and hatch after about 4-5 days

Question 9

Damage and threshold of first gen

Answer 9

They destroy flower buds, however the damage is often unimportant. There is usually no loss due to fruit set and berry weight gain. Up to 30% of damaged flowers is tolerable

Question 10

Damage and threshold of second/third gen

Answer 10

These damages can cause yield losses. Usually 10-30% for early varieties and 40-50% for late varieties

Question 11

What is the threshold for table grapes?

Answer 11

2-3% of berry clusters

Question 12

What is the relationship between lobesia botrana and botrytis?

Answer 12

Lobesia botrana is more attracted to grapes infected by botrytis and the larvae have often been seen eating the fungi

Question 13

Does a mutualism between Lobesia botrana and Botrytis cinerea occur?

Answer 13

Yes, mainly because of sterols produced by the fungus

Question 14

How to best monitor Lobesia botrana

Answer 14

Through the use of delta or winged traps

Question 15

How can we best control lobesia botrana?

Answer 15

Behavior control via mating disruption

Question 16

A further innovative strategy for lobesia botrana (what is it and how does it work)

Answer 16

Use nanofibers. Use nanofiber webs to hold pheromones:
* Protection from wind and rain
* Continued, controlled release
* Very even distribution

Question 17

What is a shoot binder machine

Answer 17

A new machine used in precision viticulture in which we can do three key things
1. Deploy pheromone loaded mesofibers
2. Perform pruning
3. Weeding tasks in vineyards

Question 18

Are there biological control options for lobesia botrana?

Answer 18

Yes there are several. There are many natural enemies of the insect and it can also be controlled by fungi and viruses

Question 19

What is the order of lobesia botrana?

Answer 19

Lepidoptera (adults aren’t chewing insects with mandibles, but the larvae are)