Version history
BYDV Assist
20
ASO score
Text
25/100
Reviews
0/100
Graphic
40/100
Other
0/100
App Rating
Votes
App Age
6y 5m
Last Update
Aug 26, 2024
Compare with Category Top Apps
|
Metrics
|
Current App
|
Category Top Average
|
Difference
|
|---|---|---|---|
|
Installs
|
1.8K
|
71.1M
|
-100%
|
|
Rating
|
0
|
4.29
|
|
|
Number of Ratings (Voted)
|
0
|
92.3M
|
|
|
App Age
|
6y 5m
|
6y 8m
|
-5%
|
|
In-app Purchases Price
|
$0
|
$98
|
|
|
Update Frequency
|
489d
|
84d
|
+481%
|
|
Title Length
|
11
|
26
|
-58%
|
|
Short Description Length
|
61
|
74
|
-18%
|
|
Description Length
|
2 555
|
2 634
|
-3%
|
|
Number of Screenshots
|
528
|
1192
|
-56
%
|
|
Has Video?
|
No
|
0% has videos
|
|
|
Size
|
0MB
|
0MB
|
|
Category Ranking in United States
7 days
Last 7 days
Last 30 days
Last 90 days
Last 180 days
Last year
| Top | Dec 21, 2025 | Dec 28, 2025 |
|---|---|---|
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No results were found!
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| Top | Dec 21, 2025 | Dec 28, 2025 |
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No results were found!
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| Top | Dec 21, 2025 | Dec 28, 2025 |
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No results were found!
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| Top | Dec 21, 2025 | Dec 28, 2025 |
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No results were found!
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Downloads
Downloads Graph
Total
1.8K
Last month
7
Text ASO
Title
(
Characters:
11
of 50
)
BYDV Assist
Short Description
(
Characters:
61
of 80
)
Scouting app for BYDV (Barley Yellow Dwarf Virus) infections.
Description
(
Characters:
2555
of 4000
)
ONLY FOR UK BASED USERS: We've developed a new app (MyFIELD UK) that includes the BYDV models. Please install and register in MyFIELD UK to keep using the BYDV models among many other functionalities and models for your crops.
FOR USERS FROM OTHER COUNTRIES: We've been working on improving the usability and performance of our app. A new version of the app is ready for you to test. Please bear in mind that when downloading it, you will have to re-register and create your fields from scratch, but you'll be done in a couple of clicks and will be able to enjoy the new improved app.
BYDV Assist is a scouting app designed to aid in spray timing to control Barley yellow dwarf virus (BYDV), which is primarily transmitted by the bird cherry-oat aphid and the grain aphid. As such
fields still need to be inspected for aphid pressure when considering foliar insecticides to control primary infection and secondary spread.
The app will not predict primary infection, this occurs when the initial aphids migrating into the crop colonising relatively few single plants in the crop. BYDV Assist calculates when the second
generation offspring are produced to the extent where they spread causing larger areas of infection, which are far more damaging. Controlling the secondary generations is key for robust BYDV management in autumn.
The timing of the second generation can be calculated by accumulating the daily average air temperatures above 3oC, below which aphids will not be clonally reproducing. On average it takes 170-day degrees (DD) for enough second generation to be produced to cause localised areas of infection.
If two secondary events occur in a row (340DD) this would indicate tertiary spread, where the whole field will be infected with aphids, causing the highest risk of yield loss.
This tool can be used to calculate when the 170DD threshold has been reached at your location using our current weather data, as well as our historical data to help predict where it could occur.
To use the app:
· Input your location this will then pick the closest weather station.
· Select your emergence date (this is when the 170DD is calculated from).
· If a foliar insecticide treatment has been applied, input the date treated. This will rest the calculation to 0DD for 1 week.
· A warning is given at 145DD to allow a couple of days to inspect the field and another when the 170DD threshold is reached.
· If aphids are present and the 170DD is imminent or occurring a spray is recommended.}
Read more
Other
Additional Information
| Rating: | |
| Voted: | 0 |
| Google Play Link: | |
| Website: | |
| Email: | - |
| Privacy Policy: | |
| Categories: | Tools |
| Size: | - |
| Installs: | 1.84K |
| App Age: | 6 years 5 months |
| Release Date: | Jul 30, 2019 |
| Last Update: | Aug 26, 2024 |
| Version: | 5.5.4 |
Version history
5.5.4
Aug 26, 2024
5.5.3
May 27, 2024
