Haşere kontrolü erişim saatleri dışında yapıldı.

Because haşere kontrolü is a Turkish noun compound meaning pest control.

In this very common pattern:

• first noun describes the second noun
• second noun usually takes the 3rd person possessive suffix

So:

• haşere = pest / vermin
• kontrol = control
• haşere kontrolü = pest control

This does not mean the control of the pest in a fully literal English possessive sense. It is just the normal Turkish way to build many compound nouns:

• araba kapısı = car door
• okul binası = school building
• haşere kontrolü = pest control

The -ü on kontrolü is there because of vowel harmony.

For the same reason: it is another noun compound.

• erişim = access
• saat = hour
• saatler = hours
• erişim saatleri = access hours / hours of access

Here the second noun is plural:

• saat
  • -ler = saatler
• then the compound suffix is added: saatleri

So erişim saatleri means something like the access hours or access times/hours.

This structure is very common in Turkish when one noun modifies another.

Dışında means outside of, apart from, or except for, depending on context.

In this sentence:

• erişim saatleri dışında = outside access hours

So the action happened not during the normal access hours.

You can think of it as:

• dış = outside
• dışında = on the outside of / outside of it

In everyday Turkish, X dışında is a very common pattern:

• okul dışında = outside school
• çalışma saatleri dışında = outside working hours
• bunun dışında = besides this / apart from this

Because Turkish usually does not use a separate word like English of for these relationships. Instead, it often shows the relationship through suffixes.

English says:

• outside of access hours
• pest control

Turkish often builds these ideas with noun compounds and suffixes instead of separate linking words:

• erişim saatleri
• haşere kontrolü

So where English uses word order and words like of, Turkish often uses endings on nouns.

Yapıldı means was done.

It comes from the verb yapmak = to do / to make.

Breakdown:

• yap- = do / make
• -ıl- = passive marker
• -dı = past tense

So:

• yapıldı = it was done

That means the sentence is in the passive voice. The sentence does not say who did the pest control, only that it happened.

Turkish uses the passive very naturally, often in the same situations where English does:

• when the agent is unknown
• when the agent is unimportant
• when the focus is on the action itself

So Haşere kontrolü erişim saatleri dışında yapıldı focuses on the fact that the pest control was carried out outside access hours, not on who carried it out.

If you wanted an active version, you would need to add an agent, for example:

• Görevliler haşere kontrolünü erişim saatleri dışında yaptı.
  The staff did the pest control outside access hours.

Because the most neutral Turkish word order usually puts the verb last.

So this sentence follows a very normal Turkish pattern:

• Haşere kontrolü = pest control
• erişim saatleri dışında = outside access hours
• yapıldı = was done

Literal order:

• Pest control outside access hours was done.

That sounds unusual in English, but it is very natural in Turkish.

Turkish does not have articles like English a/an and the.

So haşere kontrolü can mean:

• pest control
• the pest control

Which one sounds best depends on context.

Likewise, erişim saatleri can be understood as:

• access hours
• the access hours

Turkish often leaves this kind of specificity to context.

It is both.

In erişim saatleri:

• saatler = hours
• -i = the compound/possessive ending on the second noun

So saatleri contains:

• plural: -ler
• compound possessive ending: -i

This is one reason Turkish noun compounds can look complicated to English speakers: one word may carry several grammatical jobs at once.

In isolation, dışında can sometimes mean except for / apart from. But in this sentence, the time expression strongly points to the meaning outside or not during.

So here:

• erişim saatleri dışında yapıldı
  = it was done outside access hours

not

• it was done except for the access hours

The context makes the time meaning clear.

Because in this sentence, haşere kontrolü is the thing being talked about as the subject of a passive sentence, not a definite direct object in an active sentence.

Compare:

Passive:

• Haşere kontrolü yapıldı.
  Pest control was done.

Active:

• Görevliler haşere kontrolünü yaptı.
  The staff did the pest control.

In the active version, haşere kontrolünü gets the accusative ending -nü because it is a definite direct object.

In the passive version, that accusative marking is not used.

Yes. Turkish word order is flexible, though the verb usually stays near the end.

For example:

• Haşere kontrolü erişim saatleri dışında yapıldı.
• Erişim saatleri dışında haşere kontrolü yapıldı.

Both are natural. The second version puts a little more attention on outside access hours.

So the original sentence is neutral and natural, but not the only possible order.

Yes, haşere is a common formal/general word for pests, vermin, or unwanted insects/creatures.

Depending on context, it may refer to things like:

• insects
• cockroaches
• ants
• similar pests

So haşere kontrolü is a normal way to say pest control.

In some contexts, people might also use more specific words, but haşere is a broad, standard term.