The title pretty much says it all , is there a plugin or something that can stop boats and hot air balloons from spawning?

 bear.population          Population active on the server, per square km (2)
 boar.population          Population active on the server, per square km (5)
 chicken.population       Population active on the server, per square km (3)
 halloween.murdererpopulation Population active on the server, per square km (0)
 halloween.scarecrowpopulation Population active on the server, per square km (0)
 horse.population         Population active on the server, per square km (2)
 hotairballoon.population Population active on the server (1)
 minicopter.population    Population active on the server (1)
 motorrowboat.population  Population active on the server (4)
 rhib.rhibpopulation      Population active on the server (1)
 stag.population          Population active on the server, per square km (3)
 wolf.population          Population active on the server, per square km (2)
 zombie.population        Population active on the server, per square km (0)

Merged post

Add in startup params or run in console

hotairballoon.population 0
motorrowboat.population 0
writecfg

Hey when you say add in startup params , what exactly do you mean? , because i am using a hosting company called ScalaCube there is a config file called boot with the lines 

gfx-enable-gfx-jobs=
gfx-enable-native-gfx-jobs=
wait-for-native-debugger=0
scripting-runtime-version=latest
vr-enabled=0
hdr-display-enabled=0
headless=

and i have tried to add a line such as 
server.itemdespawn 1

to make items that are dropped on the floor istantly despawn but this doesnt work , so where would i add your lines + the item despawn line? 

thanks.

Here is example how my file works (startup.bat)

RustDedicated.exe -batchmode -nographics -logFile "log.txt" ^
+server.hostname "Local Server" ^
+server.level "HapisIsland" +server.worldsize 3500 +server.seed 76 ^
+server.identity "test" +oxide.directory "server/{server.identity}/oxide" +server.maxplayers 5​

this does not help me in anyway ^

If you don't have a startup.bat then it might be called server.cfg but in any case it's not that boot file you're talking about.

Ahhhhh ok , yes , thanks a lot 

Orange, just wanted to say a HUGE thank you for this info!!